Product Name: Open Shoulder Fitness Yoga Circle Pilates Ring Model NO.: wy20200512 Age: Adult Color: Solid Color Material: PP Kind: Yoga Stretch Ring Product Description 1,30 pcs large floating-point massage particles help massage and relax stressed joints and muscles, stimulate the recovery of muscle groups2,Double arc ergonomic design, fit the physiological curvature of waist and neck, fully relieve the muscles of neck, shoulder and waist3,High quality and environment-friendly PP material, non-toxic and odorless, can contact skin directly4.Integrated molding technology, golden proportion bow bending design, strong bearing and no deformation