Big Pulling Power: 2 pack 4.8" diameter heavy duty rubber suction cup, maximum horizontal suction is 130lb and the maximum vertical suction is 110lb. Constructed with a quick release handle with a spring loaded locking handle, easy to re-position. Lift and Move Heavy Objects Easier and Safer: This handy suction cup lifter can firmly stick to any clean non-porous flat surface, an ideal tool for lifting and moving glass, sheet metal, granite, furniture, home appliances and so on. Save handling time and labor. High performance: The durable shell has higher hardness and longer service life, not easy to break and deform. The seal is made with odorless, extra strength rubber for a strong and ergonomic grip, the soft rubber pad is gentle on surfaces and wont scratch the paint.