Load capacity: approx. 130 kg each, diameter: approx.20 cm each, ideal solution for the safe and efficient lifting of heavy, smooth materials such as glass, metal, tiles or stone, integrated pressure manometer: green area (safety zone): sufficient vacuum available, red area (dangerous zone): insufficient vacuum – re-pump required, grip material: high quality, durable technical plastic, suction rubber: resistant nitrile rubber – resistant to oil, abrasion and aging, including protective case, original packed