Michel Cutting Cold Patch is for inner tube repairing. Best choice for DIY. Item No. MC-1041 Michel Cutting Cold Patch is for inner tube repairing. You can cut any shape and any size according to the tire injury. It is the best choice for DIY purpose. It is heat resistant,and widely used for repairing inner tires of bikes,motocycles and automobiles as well as for natural/synthetic rubber tires. ...