Sometimes tubeless tires can sustain damage that is beyond the ability of a mushroom plug Tears from jagged items can require the use of what is known as string or rope plugs This kit comes with 20 American made rubber reinforced inserts 4 inches in length each Along with the sturdy T-Handle Reamer and Insertion Tool is a tube of rubber cement, retractable blade, full repair instructions and a durable zippered canvas bag The bag measures 5" x 2" x 6" and weighs only 11 ounces; Note: Safety experts recommend that punctured and/or plugged motorcycle tires should be replaced as soon as possible.