Ergoguys A4TECH 4 BUTTONS 1 X WHEEL USB OPTICAL MOUSE - Optical - Wireless - Radio Frequency - White - USB - 2000 dpi - Computer - Tilt Wheel - 4 Button(s) - Symmetrical G9-110H-2

Add style and personality to your computer peripherals The Revolutionary HoleLESS Engine It has a completely closed bottom, without any sensor opening. This prevents dust & liquids from entering, Guaranteed HD precision, always! And prolonged mouse lifetime.Comfort Grip Maximize your hand comfort to provide better grip after using far a long time.