All Dynaplug Bicycle Tire Repair Plugs are a sealant-friendly, unique viscoelastic impregnated rubber that bonds instantly and permanently with your tire, and the nonabrasive brass tip will not scratch your rim or puncture your rim tape. No need to remove the tire, no messy glues or solvents, just plug and ride! Depending on the type of puncture, choose SOFT, BULLET or POINTY. Dynaplug is the fastest, easiest and all-round best way to repair a tubeless tire mid-ride. When needed, just move whatever caused the puncture, firmly push the novel insertion tube straight (without twisting) into the hole and extract the tool depositing the repair plug in the tire, done! Made in the USA.