Park Tools Vulcanising Patch Kit

The Vulcanizing Patch Kit includes six thin and flexible patches with tapered edges to blend perfectly with the profile of the inner tube.
Four round patches are 25mm in diameter for smaller holes.
Two oval patches, 25mm x 35mm, are for wider cuts.
A tube of self-vulcanizing fluid chemically bonds the patch to the tube for a permanent repair.
Each kit is packaged in a small plastic box with sandpaper for cleaning the tube and instructions