PORTABLE, COMPACT and - Our bike tire pump fits road and mountain bikes Small in size, you can put the mini bike pump CO2 inflator in your bag or pocket, this is definitely the most convenient CO2 inflator for bike tires FAST AND EASY INFLATION IN SECONDS - Upgraded design with lever operation to adjust CO2 release speed for easy and precise inflation control. It is Presta and Schrader valves compatible. DURABLE MATERIAL AND GREAT WORKMANSHIP - Machined from high-end premium aluminum alloy to all parts are durable and accurate. Comes with an insulating rubber foam sleeve (16g only) to prevent freezing of during operation. SAFE SAFE CONNECTION NO LEAKS - The bike tire inflation head is designed with a sealed threaded connection to accommodate any size "threaded" CO2 (12g, 16g, 20g and 25g) BEST BIKE TOOLS FOR CYCLERS - Our Bike Tools Mini Bike Pump CO2 Inflator can help you get your going in seconds. As such, it's a good choice for races, group rides or timed events. Color: Silver and Red Material: aluminium alloy Package Contents: 1 x valve adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.Products from Bazhou's store