The Bolt-in Extender is perfect for those vehicles whose metal tongues will not accommodate a Click-and-Go extender or for those who prefer for the entire extender to remain hidden. Benefits and Features: Permanently installed with a few simple steps - instructions included! Ideal for use with big people, pregnant women, fire fighters and service men with bulky equipment belts, those with limited mobility and range of motion Comes with everything you need for installation Drive in safety and comfort Extends your seat belt length by about 12".