... silicone material. Dustproof; washable.Soft; good silicone keyboard cover Silicone Keyboard cover---- Features:Made of non-toxic, durable high ... every point with less than 0.1mm tolerance Customized keyboard acceptalbe CE certification, SGS, ROHS passed----- Function: ... dust and other contaminants Safeguard your keyboard from wear and tear, keeping your keyboard good looking Mute-typing, diminidhes ...