3-cups vacuum glass sucker on glass 1.Vacuum grabber--alloy ... 3.lifting life:8000times 3-cups vacuum glass sucker on glassUsage:can move or lift non-porous materials ... pad assembly ,suction cup,Iron aluminum alloy,silver/black lacquer,caoutchoucsuction-plane 170kgs,upright 120kgs the same quality ... CTN:43*34*49G.W.:16KGN.W.:15KGSurface treatment: black, red,yellow,reseda spray paint, powder sprayIt can ...