3-Pc. Gel Overlay for Surgical Tables - Consists of: - Head Section - 20" x 10" - Body Section - 20" x 40" - Foot Section - 20" x 20" 3/8" Thick Pad Set has Perineal cutout; 1/2" Thick Pad Set does not. Gel patient pads are made of premium quality polyurethane gel. Gel pads help reduce tissue trauma. They are latex free, fluid resistant, reusable, and covered with a membrane-like coating for easy clean up. Gel pads are self-healing if punctured.