1. Product Name: PU Foam Trigger Points Myofascial Release Fitness Massage Ball 2. Material: PU 3. Features: The massage ball features trigger points on the surface to help you with myofascial release and round-shaped for easier acupuncture foot massage color: Black (1) The massage ball is designed for relief, , myofascial release, trigger points and great for reflexology, piriformis syndrome, acupressure, mobility, and deep tissue massage treatment (2) The distinct texture stimulates circulation and increases mobility so as to boost aiding (3) The ball is perfect for targeting muscles through deep tissue compression massage (4) The durometer creates optimal pressure to up knots and mobility (5) Portable, water resistant, and easy to use and clean 5. Size: (.) Diameter: 85MM Packing list: 1* Massage Ball Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.