Here is your new bicycle tire patch repair kit. This 7 piece kit contains 3 patches, 1 sanding rasp, a 10 cc tube of rubber cement and 2 Dunlop valve stem plugs. The package says 4 patches, but there is only 3. I don't know why the manufacturer put that. Therefore, I am not describing this kit as having 4 patches. I am describing it as 3, the actual contents. Hence, a 7 piece kit. Application instructions are on back of package. Please see the specs above for more details. Thanks for stopping. Please visit my store for other bike accessories, to read about me, my policies and view other items. David - thediscountretailer