Wired Vertical mouse : 1.When we use ordinary mouse for long time , our wrist will be very tired and pain , if we use vertical mouse instead , we can let our wrist take a rest , it will be better for our health. so when you surf the Internet , use photoshop and play game , the vertical mouse is the best choice! 2.The long/width/high of this vertical mouse is 101mm/76mm/82mm , very suitable for playing game and office use , and your hand won't be tired . 3.New hand type operation, release your wrist. 4.Precision reasonable function layout, it is more relaxing and simple use. 5.Scientific ergonomic design, stretch the human body meridian at the greatest degree; 6.Plug and Play , drive will be installed automatic. 7.DPI : 1600. 8.1.5m long wire . 9.The number of buttons: 5 10.Surface material : Comfortable Matte material . 11.With Sliding Rotating Wrist Rest Mouse Pad Memory Foam Ergonomic Slipping Hand Mat Gaming Healthy Mousepad.