... 2.Max-lift:100kg 3.lifting life:8000times metal suction cups for glassUsage:can move or lift non-porous materials ,such as glass ... , metal, Formica, plastics, fiberglass, linoleum and polished stone are ... glass valume lifter. things can be moved easily.Material: Fine metal alloy frame , mid quality materialCup typle:3 cups,rubber ...