You pick the hand position that best suits you.A truly ergonomic mouse, its vertical design will be above the wheel mouse, left, right to move the mouse the right , so that when operating the mouse, the hand can maintain the most natural, the most relaxed state, nor prolonged use will feel pain.
Prevention of mouse handErgonomically designed to reduce strain
Plug and play, compatible with Mac and PC.Five button, full function mouse
Five button, full function mouseUser convenience with wow-pen's signature, pen-grip comfort.
Interface: USB (Cable 1.5m/5ft)
Button: 4 buttons in default / 1 scroll wheel (middle button)
Operation System required : Windows 98/Me/2000/XP/Vista/Win 7
Dimension: 100mm(W) X 84mm(D) X 80mm(H)
Weight: 200g (include USB cable)
Color: Purple silver + black
1 x VERTICAL MOUSE