Lifting Capacity: 125 lbs (57 kg) This vacuum is designed to make the carrying of large sheets of glass easy. The handle is attached to a rubber suction cup. Vacuum attachment to non-porous surfaces is achieved by repeatedly depressing the pump plunger until it stays well within the handle beyond the red band. Once the attachment has been achieved, the glass sheet can be easily lifted. The rubber cup has the capability of handling almost any manual lift without damaging most delicate surfaces, and is released quickly from the material by pressing the release lever. Carrying case is included.