Heavy Duty PVC Patches for IKs recently discovered in a kayak pro shop hoard. Each patch is approximately 4.75 inches in diameter. Made of fabric reinforced PVC. Best used on PVC boats, such as Sevylor and Metzeler, but could be used for other materials with the correct adhesive. Adhesive is not included! Use Bostik or similar adhesive such as AquaSeal. Assorted colors, same or similar to photo. Use menu to select and see color options.