This refill kit contains five DARTs and a carrier that makes reloading your Stan&';s NoTubes Dart Tubeless Tyre Repair Kit fast and easy, all stored in a compact, sealed container. *Barbed plastic tip anchors onto tire to prevent it from pulling off *Flexible material and laser-cut shape conforms to puncture and bonds with sealant *Wears off clean, no trimming needed, and cannot be felt while riding, even on road tyres *Includes sealed container and carrier rack for fast and easy reloads