The GRID Foam Roller uses high density EVA foam in an exclusive GRID pattern to deliver moderate compression for a comfortable total body massage. Ideal for anyone new to foam rolling, in need of softer compression, or recovering from an injury, it aids in muscle recovery, improves flexibility, and enhances mobility. Made from molded polypropylene to maintain firmness. Lightweight, easy to clean and transport. Maintains shape after moderate to heavy use and is perfect for all body types.