The Lezyne Tubeless Pro Plugs are the most reliable solution for repairing a tubeless bike tire tread at home or in a workshop. These innovative mushroom plugs fill the hole and seal the puncture from the tire, maximizing the life of your tire. You can be sure that your repair will hold up even under the most extreme conditions, so you can keep riding worry-free.The kit includes three sizes of plugs. With two 3mm, two 3.5mm, and two 4.5mm plugs, you can be sure you&';ll have the right size to fit your tubeless tire. The kit also includes two abrasive pads and two rubber cement tubes to ensure a secure seal.