Handle body is constructed with aluminum alloy which is very strong and durable. The suction pads are constructed with natural rubber. Ergonomic anti slip handle.Can be used for lifting and moving tiles, glass, metal, etc. Always ensure that the surface is clean.The diameter of cups is 120 mm or 4-3/4". The suction cups total length is 345 mm or 13-9/16". Maximum lifting weight capacity is 80 kg or 176 lbs.When not in use, the suction cup should be stored in clean and dry condition avoiding moisture and sun.