The Tubeless Tire Plug Pack kit contains fifteen 1.5mm tire plugs and four anchors (two small and two large) that are optimized for use with the TCS Rocket Tire Plug KitAnchors can also be used with a hex multi-tool in a pinch or when the Rocket Plug Kit is unavailable Small anchor holds up to two plugs and can be pushed into the tire using a 2mm hexLarge anchor holds up to four plugs and is compatible with either a 2mm or 3mm hexTubeless Plug Refill15 plugs and 4 AnchorsUPC/EAN/GTIN: 714401951143