GiftWrap Etc. Clear Plastic Suction Cup Hooks - Pop Up Handles and Grips, 4 cm (1-5/8 in) Wide, Set of 10, for Glass, Windows, Windshield, Metal, Tile 40 mm diameter (approximately 1 5/8") suction cups with gripped hooks Suction cup hooks with self gripping teeth for hanging items, running wire, or Christmas lights. No fear of your item slipping off the suction cup. Pop up handle makes for easy removal of suction cup - No need to pull on the center or try to "scrape" off suction cup Sticks to clean glass, non-painted metal surfaces, and smooth tiles Package includes 10 suction cups