ZoN 36" Deluxe Foam Roller Provides extra firm, ultra rigid support for all body types. Lightweight foam roller is constructed of hi-density EVA foam to withstand the demands of the most rigorous and demanding exercise routines. Durable and versatile. Roller will return to original shape after use. Non-porous roller prevents moisture and bacteria from penetrating the surface. Suitable for and adaptable to a variety of exercise and therapy techniques.