The Soozier 6" x 36" round foam roller features a high-density andextra-firm design meaning this item will last through years of usewithout compressing over time. Primarily used as an assisting tool withstrengthening and rehabilitation exercises, as well as for pilates,postitioning, balancing and rolling your trigger points. Features / Specifications: - High-density construction that wont compress over time - Extra-firm / smooth surface means great support for all body types - 6" diameter by 36" long - Polyethylene construction