Suction cup maximum lifting load capacity of 50kg(110lb) in level and 35kg(77lb) in vertical position.Easy to tighten the suction cups to the surface and convenient to use.Made from premium aluminium alloy and rubber, this suction cup is practical and easy to use.Perfect for lifting, moving, pulling, gripping, handling materials such as glass, mirror, metal sheet, etc. Can be used as a dent puller for car, fridge or washing machine body.When apply the suction cup on an object, the surface of the object should be flat, clean, smooth and nonporous.