The plastic framed double suction cup is designed to conform to most curved glass surfaces. Each cup is designed to hinge making it very easy for the cup to be positioned on the glass surface. Do not lift in excess of 100 lbs with this cup.
Each suction cup is equipped with a 1/4" screw hole for additional mounting options.
The suction cups measure 4" in diameter and are made of heavy duty plastic.
The maximum vacuum pressure these suction cups can withstand is 100 lbs.