The Topeak Free Pack DF Tool Carrier offers a compact, organized way to store an inner tube, mini tool, and CO2 cartridges. Mounts directly to the saddle rail using the Duo Fixer system, allowing quick slide-and-click attachment compatible with other Topeak Duo Fixer accessories. Made from engineering grade polymer, lightweight and durable for daily rides.Versatile storage: Holds most inner tubes plus CO2 cartridges or a mini tool for on-the-go repairs.Duo Fixer mount: Saddle-rail mounting system compatible with Tubi tools, CO2 inflators, fenders, and lights.Quick install: Slide-and-click mechanism ensures fast, secure attachment without tools.Durable build: Engineering-grade polymer construction provides long-lasting reliability.Lightweight design: Only 45 g and compact at 10.4 x 6.7 x 1.8 cm for minimal bulk.Manufacturer Sku: TDF-FPTodson Sku: 60400007