The Lenovo 300 USB Combo Keyboard and Mouse is the perfect companion for your available USB ports. The set features a modern, space-saving design giving your desk a clean and stylish appeal. To go along with its design, keyboard features a waterproof exoskeleton ideal for accidental spills. Matching its practical mate, full size mouse is an ergonomic masterpiece - all-day comfort at your fingertips. The Lenovo 300 USB Mouse is perfect for those looking for a mouse that just works. The mouse sports a clean and streamlined design that feels just right in the hand.