This double cup suction lifter features a hugely strong cast aluminium frame. To activate the high density rubber cups you simply operate the ABS levers. It is effective on glass or any smooth non-porous surface. This is a very useful item when it comes to moving white goods such as fridges or washing machines. Attaching the lifter gives you an instant handle. The pads are 120mm(4.3/4") diameter. The maximum lifting capacities are 100kg vertical or 110kg horizontal.