Cushion dimensions: 24 W x 16 D x 7 H inches. Lifts heels off the bed for total pressure relief. Off-loads both heels. Prevents formation of pressure sores. Aids in healing existing ulcers. Elevates legs to relax spine. Low-Shear II, cover protects against skin-damaging friction. Wipes clean for easy care. . WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov