Made of EVA foam, light weight, very soft, floating surface massage. Waterproof, non-slip, non-toxic, tasteless. The most popular Pilates, yoga trainer, we can also make children's sporting goods, swim sticks. Yoga columns can help yoga practitioners complete balance. It is also possible to end the adhesion of soft tissue and scar tissue, self-massage and release of myofascial fascia, breaking the point. The fascia simultaneously increases blood flow and circulation, relieving soft tissue tension. Specification: Color: Blue/ Purple/ Green/ Pink/ Black Material: EVA Foam Size Chart: 3 Sizes: 30CM/11.81inch 45cm/17.72inch 60cm/23.62inch Package Includes: 1x Half Round Eva Foam Roller Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!