Perfit Mouse Optical Model PMO-M-L

Bill Buxton's Notes

This ergonomic mouse comes in left-hand and right-hand versions, and three hand sizes to ensure a proper fit. The mouse buttons are mirror image on the left and right mouse; that is, rather than a left mouse button, it has an index finger mouse button, which is correct. The scroll wheel is thumb operated on the side, below which is a rocker-switch that can be used for navigation, such as paging in browser.