Trademark Roll-Up Portable USB Keyboard, Green, Waterproof: * High quality silicon construction * Lightweight and compact roll up for easy transport * Water-resistant, spill-proof and washable surface * 85 keys * USB compatible-connects via 59" USB cable * Dimensions: 5.25" x 13.75" x .625" * Compatible with Windows 98, Windows ME, Windows 2000, Windows XP and Windows 7