Mine's this one, and works perfectly with either hand: https://www.kensington.com/en-au/p/products/control/trackballs/slimblade-trackball/ https://www.kensingto

Mine's this one, and works perfectly with either hand: https://www.kensington.com/en-au/p/products/control/trackballs/slimblade-trackball/ https://www.kensington.com/en-au/p/products/control/trackbal...