• Advantage:this suction cup designed for arc surface with larger cup spaces, Can lift objects whose surface is curved, such as a bathtub,and you could also use it to flat surface but your need to take more actions to have enough vacuum to lift your load.
  • 8" in diameter heavy duty vacuum suction cup with extra strength rubber pad for a strong and ergonomic grip.Load capacity:140 lb-560 lb(maximum). which could works in -20℃ to 60℃ temperatures, and keep the vaccum for 6 hours
  • Red-Line Indicator Warns User of Any Vacuum Loss. When the red line appears while lifting, simply thumb pump the plunger without removing the cup from the surfaces.
  • Check valve allows repumping without loss of remaining vacuum.Release valve lever permits quick and complete release.
  • Easy access to parts.Environmental rubber,pass ROHS testing

The rubber is perfect for curved and straight glass, I like that the rubber is very flexible

They are great. I am 278lb and I put one cup on a door and pulled myself off the ground and hung for a few seconds. Well beyond there max wait limits. Great buy and seller.

I have changed about 20 window panels with it so far and it has held reliably

Me gusto mucho y llego rápido es de buena calidad!!.👍👍👍

Worked well easy to use.

I like it becouse it got gripped just the way I wanted

Works great. Highly recommend.