"3 3/8 Diameter with 2 side pilot holes (top hole dia. ¼ and Bottom hole dia. 3/8 suction cup made with unique reinforcing rings for added strength and long term holding power. Made from proprietary blend of PVC, with UV-stabilized material that resists yellowing and deterioration over time. Able to be used in hot and cold environments. Rated to hold 20 lbs.
* Usage suggestions Readily accepts string hangers, wire dowels and other small-diameter fasteners.