This webbing split bracket is designed for use with the GFC Camper's 0.5-inch T-slots, providing an attachment point for 1-inch webbing. Fabricated from ASA (ABS) the tolerances are tight. For me these brackets require pliers for final nut tightening. 

Constructed with a minimum of four walls, they have demonstrated sufficient strength to prevent ladder slippage in my application. While not formally load tested, I estimate a minimum holding capacity of 50 lbs (22.6 kg), but YOU SHOULD DO YOUR OWN STRENGH TEST.