INVISIBRAKE A revolutionary innovation in supplement braking 14-6090 INVISIBRAKE HIDDEN BRAKE SYSTEM 8700 Completely out of sight - Invisibrake is so small (8.75" wide, 8.75" deep and 2.75" tall) it can usually be mounted under a seat without sacrificing any of the vehicle?s usable space. Progressive Braking - When you continue braking, so does Invisibrake. The longer you apply the brakes in the motorhome, the harder your towed vehicle will brake. Invisibrake will NOT skid your tires. Trickle charges the battery - Invisibrake connects directly to the towed vehicle?s battery, and constantly charges the battery during towing - Invisibrake will never drain the battery. Two-stage motorhome monitor - Invisibrake includes an LED monitor for a visual reference of braking activity; an audible alert at the motorhome indicates extended braking to warn you if the brakes have been activated for too long.