The workshop stool is a low-profile seat on heavy-duty caster wheels, allowing a mechanic to move comfortably around a vehicle while working on brakes or bodywork. It saves strain on the knees and back by eliminating the need to constantly squat and stand. Modern versions often include a built-in tool tray at the base to hold wrenches and parts, keeping them within rolling distance. The seat is usually padded vinyl for durability and easy cleaning.