* Silicone, environmentally protective
* Non-toxic, dustproof, waterproof, durable
* Touch well, press can be controlled, no noise, good feeling
* Harmless to the human body with excellent softness
* Portable with the proper size to fold or roll
* Easy to work for its round shape design
* Flexible, easy fixed and helps muffle typing noises.
* Washable and Make virus away from your fingers.
* Prevent keys from general wear and tear caused by everyday use washable and easily to remove