20cm long and 11cm wide/thumb included.
On a sidenote, if that is even helpful . The g403 works perfectly fine in palm/claw/fingertip grip for me.
I will definitely keep the mouse and try to get used to it. Who knows, sometimes i have weird days and then one of the mice out of my collection work better than others. So i will keep for one of those days.
Edited by James N - 4/25/17 at 5:48am