The Topeak Tubi Master+ is a handy tool for cyclists, combining a tubeless tyre repair kit with a CO2 inflator. It's designed to quickly fix punctures whether you're on the road or trail. The CO2 inflator head is made from CNC aluminium and fits Presta valves, accommodating a single threaded 16g or 25g CO2 cartridge. The tool body neatly stores a tyre reamer and two plug insertion tools (1.5mm and 3.5mm), along with a hidden compartment for tyre repair plugs. The Topeak Tubi Master+ can be easily attached to bike frames using the included mounting module with grip strap and zip ties. Tools: CO2 inflator, one 25g CO2 cartridge, 2-in-1 tyre reamers with 1.5mm & 3.5mm plug insertion tools, plug retainer, and knife with holder and dust cap Inflator Head: CNC aluminium, fits Presta valves only (with dust cap) Tool Material: Chrome vanadium steel Attachment: Mounting module with grip strap or zip ties Mount: Bike frame Added Features: Safety lock for CO2 cartridge, plug insertion tool lock, repair plug compartment, and 3 pieces each of 1.5mm x 50mm and 3.5mm x 50mm tyre repair plugs included Size: 14.8 x 5.3 x 2.6 cm / 5.8" x 2.1" x 1" (without mounting module) Weight: 246.5 g / 8.69 oz (with 25g CO2 cartridge & strap)