Features: 【deeply Muscle Relaxation】Crafted from High Elastic silicone, the massage ball penetrates deeply into muscle tissue to effectively relieve post-exercise tension. 【Portable Design for Instantly Relief】Compact and lightweighted construction ensures effortless portability, enabling massage easily. 【Versatile Full-Body Application】Whether targeting shoulders, neck, back or soles, the silicone massage ball adapts seamlessly to body part. 【Durable Friendly】Silicone offering excellent elasticity and abrasion resistance, ensuring a safe and healthy user experience. 【Simple Operating, Not Require Power】Manual operating design not require electrical power for effortless use. Specifications: Component: silicone Size: 5cm/197in Color: Optional Technical: Not require power | Manual operating | Lightweighted and portable design For Muscle relaxation after fitness | Office sedentary massage | Travel portable massage tool Package Includes: 1PC Muscle fitness massage ball note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution