Our bridges are mounted to the glass with high quality flip levers or pump style vacuum cups. They require very minimal pressure to apply and when used properly will not release unexpectedly. Not only does a vacuum cup greatly reduce the chance of cracking the glass when applying the bridge, it also eliminates the flex in standard suction cups, which greatly reduces the amount of pressure required to seal the injector over the impact point. As the piece of equipment that will perform the bulk of your work it is important that you choose a bridge that can repair any type of damage, that is easy to maintain, and that will last a lifetime.