The special shape of the HandShoe Mouse allows your hand and wrist to float without any effort.
Its full hand and finger support prevents skin contact with the desktop, unlike most computer mouse types where you press down on the desktop and work from the wrist or rub over the desktop while sliding. Both of these actions are a source of complaints.
With a HandShoe Mouse you don’t need to hover your fingers over the buttons: Only a minor effort is required to switch while your thumb rests on its support. This prevents thumb action which can otherwise be harmful.