The Stan’s NoTubes Dual Action Repair for Tubeless DART system offers a better way to fix damaged tubeless tires. Specially treated DARTs dont just plug large slices and punctures in your tires they react with Stans sealant to form a permanent airtight bond. This Refill kit contains five DARTs and a carrier that makes reloading your DART Tool fast and easy all stored in a compact sealed container. Includes 5 DART Refills required a hrefhttpsstore.biketiresdirect.comproductstans-notubes-dart-tool?fltrDART Tool sold separatelya href Reacts with Stans sealant to form an instant airtight seal Barbed plastic tip anchors into the tire and will not pull out when riding Flexible fabric conforms to shape of puncture and bonds with sealant Wears off clean no trimming needed and can not be felt while riding even on road tires Includes sealed container and carrier rack for fast and easy reloads