The first anchor trolley designed specifically for the job, the YakAttack LeverLoc™ Anchor Trolley features a LeverLoc™ line clamp, which locks your trolley line in place with a simple “flip of a switch” motion. This model features the HD option, which gets you two extra PadHooks plus backing plates for the pulleys and LeverLoc™, enabling a heavy duty install when compared to the self-threading screws included in the standard kit.