Pro Bike Tool CO2 Inflator with Cartridge Storage Canister - Quick, Easy and Safe - for Presta and Schrader - Bicycle Tire Pump for Road and Mountain Bikes - No CO2 Cartridges Included GET BACK RIDING QUICKLY WITH SUPER FAST & RELIABLE TIRE INFLATION - Inflate a tire in seconds with our 1-Turn Valve System. Control lever operation regulates speed of CO2 release for precisely controlled inflation. Twin valve head threads onto either Presta & Schrader 'threaded' valves with no valve head switching needed. Not compatible with valve extenders. For Presta valves with removable cores, extra care should be taken to tightly screw the core into the valve stem. SAFE CARTRIDGE STORAGE & SECURE CONNECTION WITH NO LEAKS - Integrated canister for safely storing a CO2 cartridge, canister body also insulates from cold during inflation. Secure & safe screw-on valve connection delivers no leaks when inflating. Designed for 'threaded' cartridges only (12g & 16g), the safest and most reliable cartridge option. Detailed instructions and spare rubber O-ring included. No CO2 cartridges included, threaded CO2 cartridges sold separately. SMALL, COMPACT & LIGHTWEIGHT - Read the amazing reviews, customers love this stylish CO2 inflator for its compact small size which is perfect for stowing away in your saddle bag or cycling jersey pocket. Product dimensions, length: 4.72 inches (12 cm), width: 1.97 inches (5cm). Weight: 1.8 oz (55g). NEW DESIGN - SAVE MONEY IN THE LONG TERM, INVEST IN THE BESTNOW. Why spend money on a cheaper CO2 inflator which will inevitably fail when you need it the most! This CO2 inflator is made from superior quality CNC machined aluminum alloy with durable and precise parts, which is BUILT TO LAST, so you can have a safe & enjoyable ride. PRO QUALITY - Were so confident about the quality of our products that if you have any product issues, were very happy to either provide a Refund or a Replacement! We recommend only using premium quality threaded CO2 cartridges for 'best performance', such as PRO BIKE TOOLs threaded CO2 cartridges.