Bell sells and will install the Eject Kit in most Bell models. Eject is an inflatable bladder located in the top pad of the helmet. In the event of an accident when the driver's head needs to be immobilized, the bladder can be inflated to lift the helmet off the driver’s head. The chin straps must be undone before the bladder is deployed and Bell recommends only using Eject if the series the driver competes in has trained personnel who know how to properly inflate and use Eject. Installing Eject in the helmet requires the purchase of a Top Pad Velcro Eject Kit in the proper size.