Includes 5 DART Refills, sealed container, and carrier rack for fast and easy reloads (required DART Tool not included). Stans developed the Dual Action Repair for Tubeless (DART) tool to fix damaged tires faster, easier and better than existing plug tools. While traditional tire plugs try to wedge rubber strips into a puncture, the DART creates a chemical reaction with your Stan’s sealant to quickly form a permanent airtight bond. The DART Tool is designed to be extremely light, durable, and easy to fit into pockets and packs, while offering an ergonomic design that’s easy to hold and allows precision DART placement.