1.Material:PVC  2, diameter:34cm, thickness 6cm, weight:1kg/pc  3. any colors are available, can make as per customer's pantone no. 4. massage cushion is especially designed for the office workers, family and drivers. It can relieve yourself, knead  whole-body acupuncture points, dredge the body channels, promotoe blood circulation, enhance cell viability, and regulate metabolism.