MAC-XC Magnetic Quick-Release for Helmet Air Pumper uses powerful Scosche magnets for swift connection / disconnection of pumper hose to a coupler base on roll bar. Simply attach Magnetic Hose Coupler to included 12in expandable hose, connect to Coupler Base to start. Offers easy and quick connect / disconnect, easy break away, and a fixed hose mount with a strong magnetic connection. Kit includes MAC-XC magnetic helmet coupler, 12-36in expandable pumper hose, Whip Mount and Bar Mount. The kit is compatible with a wide range of bar mount tube sizes, from Arctic Cat Wildcat, Can-Am Commander/Maverick, Honda Big Red, Kawasaki Teryx Perimeter, Polaris ProR, to Yamaha Rhino Cage and Yamaha Wolverine RMAX Perimeter Tubing.