The Crazybadman 6.3cm (2.5") Hand & Wrist Exercise PU Foam Stress Ball provides ergonomic, joint-friendly tactile resistance designed for home care rehabilitation, occupational therapy, and everyday stress decompression. Engineered from high-resilience, non-toxic polyurethane foam, it offers smooth, consistent rebound to activate finger flexors, soothe arthritic joints, and reverse mouse-hand stiffness without the joint-crushing strain of metal spring grippers.
Technical Specifications
| Parameter | Specification |
| Diameter | 6.3 cm (2.5 inches) · Ergonomic Palm Fit |
| Material Composition | 100% Non-Toxic Polyurethane (PU) Sponge Foam |
| Rebound Dynamics | Medium-Soft Progressive Compression (Slow-to-Medium Rebound) |
| Average Unit Weight | ~15 grams per ball |
| Recommended Cleaning | Surface wipe with damp cloth or alcohol-free antibacterial wipe |
| Collection & Category | Home Care · Hand Rehabilitation & Therapy |
📖 Recommended 3-Minute Daily Hand Therapy Routine
1. Full-Palm Squeeze: Hold the ball in your palm and squeeze with all fingers for 3–5 seconds. Relax for 3 seconds. Repeat 10–15 times per hand to stimulate whole-hand circulation.
2. Fingertip Pinch: Squeeze the ball using only the thumb and index/middle finger pads. Hold for 3 seconds. Enhances fine motor pinch strength required for writing and utensil handling.
3. Web Space Roll: Roll the ball gently between both palms in a circular motion for 60 seconds to soothe tense palmar fascia and warm up connective tissue.
❓ Frequently Asked Questions (FAQ)
Q: Is this ball suitable for elderly parents recovering from stroke or with arthritis?
A: Yes. Unlike rigid metal spring hand-grippers that can hyperextend stiff joints, PU foam provides gentle, uniform resistance that accommodates natural hand contours without joint impact.
Q: Will the foam tear or lose its shape after heavy daily squeezing?
A: No. The ball is formed from high-density integral skin polyurethane foam, designed to withstand thousands of high-compression squeezes while recovering its original spherical shape.
Q: Can children take this to school for sensory focus?
A: Yes. The 6.3cm size fits comfortably into school bags and pencil cases, and the silent compression ensures it can be used discreetly without making clicking or squeaking noises.