1Pc Foam Massage Roller, Hollow Yoga Column Fitness Equipment for Muscle Massage, Physiotherapy and Sports Rehabilitation, Rolleproduct description Product Details: Material: EVA outsourcing + PVC inner layer Size: 26*8cm Color: black, blue, purple, rose red Yoga columns, also known as foam shafts, generally have the characteristics of light weight and rich cushioning elasticity. The role of the yoga column: it can help yoga practitioners complete various balance actions; the foam roller can not only extend muscles and tendons, but also break down soft tissue adhesions and