The Invalid Ring from Drive and Mason Medical is made from molded foam and includes a cloth cover to relieve the pain and pressure associated with hemorrhoidal surgery. Features and Benefits Invalid rings are made from a molded foam and come with a cloth cover Designed to offer relief of pain and pressure associated with hemorrhoidal surgery Product Specifications Actual Product Weight: 2.70 lbs Cover Material: Cloth Cover Overall Product Height: 4.00" Overall Product Length: 18.00" Overall Product Width: 16.00" Primary Product Color: Blue Primary Product Material: Foam Product Weight Capacity: 250 lbs Warranty: 1 Year Limited Note: Not Made With Natural Rubber Latex About Brand: Mason Medical For more than 40 years, Mason Medical has been a leading manufacturer of innerspring mattresses and pressure redistributing therapeutic support surfaces, including low air loss products, alternating pressure and lateral rotation air mattresses, gel overlays, multi-layered foam mattresses, and an extensive line of wheelchair cushions. Mason Medical, a Drive Medical Company, is committed to providing the highest quality products manufactured in the United States and overseas, as well as industry leading customer service and innovation.