Product dimensions: length: 13.5 cm, height: 8.5 cm, width: 4 cm. Quantity: 1 round handle, save effort, fit ergonomic design. Easy to use and comfortable in the hand Instructions: Gently massage your muscles with the tool. Just lay it flat on the muscles, no big angle, bring the whole skin closer when you roll it. Specially designed bumps and 2 wheels to precisely massage all parts of the body and easily massage all parts of the body. Relax your muscles, stimulate blood circulation, conducive to physical and mental health AS+PP+TPE materials, non-toxic plastic, safe to use. AS/PP/TPE can provide a high quality product than silicone and is less abrasive. Bring you deep muscle massage, adjust body comfort after exercise, and eliminate the muscle fatigue. Get rid of sore muscles quickly and without expensive massages! Thanks to its specially designed bumps, the roller manipulates soft tissue like a massager. It stretches muscles and other soft tissues in multiple directions, breaks down "knots" and increases your flexibility. Only 13.5 x 8.5 x 4 cm, it is the ideal travel roller to take to the gym, before and after training, workouts and the sports field. It fits easily into most kit bags, sturdy and water resistant. Get your muscle roll. Better than a cheap foam roller that tears and wears out. Success starts today and is protected by our lifetime warranty. Care instructions: Please use warm water to clean.