These convoluted foam squares are designed to reduce the risk of pressure ulcers while maintaining proper circulation and providing the ideal combination of exceptional stability and cushioning. It is made of high-density foam which is suitable for long term use. The unique eggshell surface allows air to flow in and out of the pad for a smoother, cooler buffing experience. These foam squares are precut for your convenience and suitable to use for with packaging, cushions, chairs and upholstery. It is also a simple and cost-effective way of improving the acoustics of any room where audio performance is important. Available in different sizes and firmness levels to suit your needs.