The park tool vp 1 vulcanizing patch kit includes six thin and flexible patches with tapered edges to blend with the tubersquos profile packaged in a plastic box with sandpaper and instructions park tool vp 1 vulcanizing patch kit features 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 25 mm in diameter for smaller holes two oval patches 25 mm x 35 mm are for