... Material,Dust-proof.2:Packing: 1pcs/neutral barrel, or as Customer request 3:Delivery Time:7-15days4:Foldable,easy fit ... . Information:Silicone keyboard ( Patent No.0128060 13 )material :Siliconekeys:109 keys, three keys areaconnection port:PS/2 or USB available ... ×170×23 MMouter packing :530×245×360 MMColor available: Any as require, popular color like Black, White, Blue, Gray......Certificate: ...