Kalmzo sensory fidget stones set with six textured tactile stones in yellow, purple, red, green, orange, and blue, and a hand holding a green  and storage box for calming sensory support.

Kalmzo Sensory Worry Stones – Textured Fidget Stones for Kids with Autism, ADHD & Sensory Needs

6 Pack
£7.99
Sale price  £7.99 Regular price 
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Kalmzo sensory fidget stones set with six textured tactile stones in yellow, purple, red, green, orange, and blue, and a hand holding a green  and storage box for calming sensory support.

Kalmzo Sensory Worry Stones – Textured Fidget Stones for Kids with Autism, ADHD & Sensory Needs

£7.99
Sale price  £7.99 Regular price 

Price includes VAT · Free UK delivery

Pack Size
12 Pack selected
6 Pack
£7.99
£1.33 / stone
⭐ Popular
12 Pack
£11.99
£1.00 / stone
Best Value
24 Pack
£17.99
£0.75 / stone
Class Pack
48 Pack
£28.99
£0.60 / stone
Qty:
Free UK Delivery
All orders · 2–3 working days
30-Day Returns
No-quibble policy
EN71 Certified
Safe & tested · BPA-free
UK-Based Support
Fast, friendly help
  • Completely silent — classroom-friendly
  • Screen-free calming tool
  • Fully washable and hygienic
  • 6 unique textures for varied sensory input
  • Compact and travel-ready
  • Suitable for children and adults

Calm hands. Focused minds. Quieter classrooms.

Our sensory worry stones are designed specifically for children with autism, ADHD, and sensory processing differences. These soft, textured rubber fidget tools give calming sensory input without any clicking or noise — so they help, not disrupt.

Completely silent, so they're easy to use in classrooms, libraries, therapy sessions, and at home without drawing attention. A practical option for parents managing sensory needs day-to-day, and for SEN teachers and occupational therapists looking for a quiet, low-distraction tool for the classroom.

Made from BPA-free rubber, built to hold up to daily stimming and heavy handling, and easy to wipe clean between uses. Suitable for children aged 3 and up.

What's Included
Choose from packs of 6, 12, 24, or 48 sensory stones. Each set includes a mix of six vibrant colours and six distinct textures, so your child (or classroom) can find the sensation that works best for them.

Whether it's one stone tucked in a school bag or a full 48-pack for a classroom sensory corner, Kalmzo worry stones are built to be reached for often — and to actually last.

😶

Completely Silent

No clicking, no noise — suitable for classrooms, libraries and offices.

♻️

BPA-Free Rubber

Made from soft, durable, food-safe rubber. CE marked and tested to EU safety standards.

💎

Easy to Clean

Simply wash with soap and water. Dries quickly, stays hygienic.

🌈

6 Unique Textures

Each stone provides different sensory feedback — find the one that works best.

👜

Pocket-Sized

Fits easily in a school bag, pocket, handbag, or desk drawer.

🩺

OT Approved

Used and recommended by occupational therapists and SEN specialists across the UK.

Every Kalmzo Sensory Stone is designed with carefully crafted tactile patterns that give your hands something satisfying to explore. Instead of reaching for habits like nail biting, skin picking, or endless scrolling, your fingers have a calming texture to focus on.

Each set includes six unique textures, with multiple stones featuring each pattern. Everyone naturally prefers different sensations, so you can discover the texture that feels most calming and satisfying for you.

Six Unique Textures

  • Fine Dots
  • Raised Pebbles
  • Parallel Ridges
  • Cross-Hatch Grid
  • Ripple Waves
  • Spiral Swirl

Each texture creates a different sensory experience—from soft and subtle to more noticeable tactile feedback—making them suitable for different moods, environments, and personal preferences.

Comfortable to Hold

Designed to fit naturally in your palm, pocket, or bag, the smooth stone shape is comfortable to roll, rub, or trace with your thumb throughout the day.

Durable & Safe

Made from durable, child-safe materials with a smooth finish and rounded edges, Kalmzo Sensory Stones are built for everyday use at home, in school, at work, or while travelling.

Whether you're looking for a quiet sensory tool, a focus aid, or simply something satisfying to keep your hands occupied, there's a texture you'll keep coming back to.

👨‍👩‍👧Parents

For children with autism, ADHD, anxiety, sensory processing disorder, OCD, or any child who struggles to regulate big emotions or sit still.

🏫Teachers & SEN Staff

Perfect for the classroom calming corner, desk fidgets, or as quiet tools during lessons. The 24 and 48-packs are ideal class sets.

🩺Therapists & OTs

A practical, low-cost sensory tool for occupational therapy, counselling sessions, or to recommend to clients and their families.

🎁Gift Buyers

A thoughtful, practical gift for a child with special needs, a birthday, Christmas stocking, or Easter basket. Beautifully packaged and ready to give.

💼Adults

Discreet desk fidget for anxiety relief at work. Silent, professional, and pocket-sized — keeps hands busy during meetings or calls.

✈️Travel Companions

Great for car journeys, flights, and restaurants — keeps children calm and quiet without screens or noise.

Our sensory stones are crafted from soft, durable TPR rubber that provides a satisfying tactile experience while remaining safe for everyday use.

Material: BPA-Free & Phthalate-Free TPR Rubber

Stone Size: Each Stone Is Individually Sized & Textured

Weight: Approx. 20 g per stone

Pack Options: 6, 12, 24, or 48 Stones

Textures: Ripple, Bubble, Wave, Grid, Nub & Smooth

Colours: Assorted sensory colours (may vary)

Age Suitability: 3+ Years

Safety: CE Marked & EN71 Compliant

Cleaning: Washable with soap and warm water

Shipping: Free UK Standard Delivery (2–3 Days)

Returns: 30-Day Hassle-Free Returns

Designed to support fidgeting, sensory exploration, focus, and calming moments at home, school, or work.

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MADE FOR EVERY SENSORY NEED

😤

Meltdowns

Overwhelm & shutdown
✓ Tactile grounding & calm
🌀

Restlessness

Can't sit still
✓ Redirects fidgety energy
📱

Screen Dependence

Always needs a device
✓ Screen-free engagement
😨

Anxiety

Worry & tension
✓ Calming sensory input
🧠

Focus Difficulties

Distracted & disengaged
✓ Supports self-regulation

How It Works

Three steps to calm

1

Hold

Place any Kalmzo stone in the palm of your hand. Let the texture do the work.

2

Self-Regulate

The tactile ridges and patterns send calming signals to the nervous system.

3

Focus

With sensory needs met, children can redirect attention to learning and play.

See How We Compare

Feature Kalmzo (Sensory Worry Stones) Fidget Spinners Stress Balls Screens & Apps
Silent in class
Multiple textures
Screen-free
Washable & hygienic ~
Safe for ages 3+ ~
EN71 Certified ~ ~ ~
(OT-informed) ~ ~
Classroom teacher approved ~

Frequently Asked Questions

Kalmzo Sensory Worry Stones are suitable for children aged 3+ and adults. They are made from BPA-free, non-toxic materials. Adult supervision is recommended for children under 3.

Yes. They are designed to provide calming tactile sensory input for children with autism, ADHD, anxiety, and other sensory needs. Every child is different, so experiences may vary.

Yes. They are completely silent and discreet, making them ideal for classrooms, homework, travel, and quiet environments.

Wash with warm water and mild soap, then allow them to air dry.

We offer a 30-day returns policy. Please see our Returns Policy page for full details.

Orders are dispatched within 1–2 working days and typically arrive within 3–5 working days in the UK.

Shop with Complete Confidence

Free UK Delivery

Free standard delivery on all UK orders. Dispatched within 1–2 working days so your tools arrive quickly.

Secure Checkout

All payments are encrypted and processed securely. We accept all major cards, PayPal and Apple Pay.

30-Day Returns

Not satisfied? Return your order within 30 days for a full refund — no questions asked, no hassle.

UK-Based Support

Our friendly team is based in the UK and ready to help. Real people, real answers — usually within hours.