Now you can sit comfortably all day long! The Egg Sitter™ transforms even the most uncomfortable chair into a supportive, pain-relieving seat. The secret is its honeycomb pattern which helps distribute weight evenly to relieve painful pressure points. This supportive design is made of ultra-flexible silicone gel which stays cool to the touch and allows air to circulate. Comes with a machine washable cover. Great for home, office or car. Silicone. 15" x 17".