Sometimes tubeless tires can sustain damage that is beyond the ability of a mushroom plug. A tear from jagged items can require the use of what is known as a string or rope plug. This kit comes with (20) twenty brown 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 razor blade, full repair instructions and a durable zippered canvas bag.Tire Repair Kit – Pocket Tire String/Rope Plug Contents:(20) Rubber reinforced inserts 4 inches in length eachT-Handle ReamerInsertion Tool.68 fl. oz. (20ml) Tube of rubber cementCutting ToolZippered Canvas bagFull Repair InstructionsWhole Kit measure 5″” x 2″” x 6″”Weighs 11 ounces