SD18185 Size: 18" L x 18" W x 0.5" D Features: -Pad.-Very durable and made in the United States.-Designed for relief and prevention of shearing.-Easy to apply on all mobility aids and all other surfaces providing immediate relief of pressure.-Won"t rot or dry out, and will not flow or leak if cut or punctured.-Specifically designed to reduce pressure, impact, and vibration.-Fits perfectly on any surface and immediately offers comfort.-Each pad is also designed with a three dimensional layout which provides ventilation and protection from shearing and friction. Warranty: -1 Year warranty.