SeaSucker's Medium-Duty Handle, with two 4 1/2-Inch SeaSuckers, is rated to pull over 200 pound. That's a lot of power. Use it as an extra hand-hold or grab bar, or use it like we do - as a carrying handle. The handle is made of 3/4-Inch white Starboard and has plenty of room to grab onto. The vacuum mounts have built-in finger pumps that allow you to attach or remove this handle in just seconds. Attaches to a wide range of surfaces - glass, fiberglass, metal, most plastics - to give you maximum utility.