If you have multiple helmets (or multiple drivers) the Bell Maglock Helmet Side Port instantly connects to Maglock's hose end. Inspired and tested in the dust and heat of Baja, the Maglock Air offers a revolutionary way to connect racers to their forced air systems. Ultra strong rare earth magnets are machined to create a solid and completely sealed bond between the forced air hose and helmet. This simple, yet reliable connection offers over 35lbs of tensile force - strong enough to stay connected during the roughest race, but easily disconnected in the case of an emergency with just the slightest pressure from any angle.