Harzole MGD-323 Tire Repair Patch Plug3/8", 1/4" Automotive Tyre Repair Plug Patch 6mm 9mm Mushroom Nail Boot Kit Wired

Dipped stem 3/8", Patch 2 1/8"  12PCS

Dipped stem 1/4", Patch 2 "  12PCS 
For use in radial and bias ply tires.
Designed for chemical or heat vulcanization.
Patch portion has gray vulcanizing gum with blue poly backing.
Stem portion is dip coated with premium vulcanizing gum.