Wanted to deflate the tires on my double cab truck. Worked great on the front 2, barely made it backwards on the driver's side and didn't reach backwards on the passenger side. Had to buy a 10" lighter power extension to get to all 4 tires. I know things were kept short to save case size and space. Buy a few extra feet of air hose so the unit sits flat on the ground no matter where the valve stem is on 20" rims.