Stan's NoTubes Dart ToolDart Tool Tubless Patch Kit Repairs large punctures and slices Reacts with Stans sealant to form an instant, airtight seal Barbed plastic tip anchors into tire and will not pull out when riding Flexible material and laser cut shape conforms to puncture and bonds with sealant Wears off clean, no trimming needed, and can not be felt while riding, even on road tires Lightweight, compact tool fits the shape of your hand for more precise use and includes