Large Plug Patch or Mushroom units for use on Truck, Bus and Off Road tyres.
4 inch (100mm) Square Patch with 14mm Thick Stem Pack Of 24
Insure the injury is cleaned out first with a carbide cutter. Prepare the area to be patched as normal but also apply some cement directly to the stem before you insert it into the hole and pull it through. Then stitch as normal.