Bezerk RC option part for the Team Associated B6.1 2wd buggy. Made from glossy 2.5mm carbon fiber, these hooks offer secure fore and aft adjustment of your shorty pack. Unlike slotted systems that can slide forward in a crash, these stay secure with a range of different positions including flipping them over to get the full range of adjustment. An o-ring (two provided with your purchase per kit) holds your pack secure enough to keep it in place but also flexible enough to allow for the chassis to flex underneath. The o-ring hooks are centrally located to the battery hooks, so o-ring is always centrally located to your battery pack. Like all Bezerk products it can be customised to suit your needs.