This silicone skin is designed as a comfortable fit system and also protects your Twiddler from dust, dirt, and other debris. It is made of high-quality silicone material that is soft, flexible, and durable, and can be easily applied and removed. The wrap cover comes in many colors and it does not interfere with the typing experience. It also provides a comfortable grip for your fingers. It is easy to clean and can be washed with warm water and mild soap.