Our iS (Integrated Storage) solution for road and gravel riders, the iS Coupe cage is a top entry cage that can be mounted anywhere on the bike. The 10-function multi-tool is securely housed behind the bottle and features a special finish for higher resistance to corrosion. The tool itself has 10 functions to help you get over basic trail side disasters. The CO2 unit is our Boundary CO2 delivery system which offers a fast and efficient method to reinflate your tire in an emergency. The valve is protected to avoid accidental engagement and our design allows you to easily control the rate and flow of CO2. The pack contains a 16g cartridge.