Those apexes are uniformly put but asymmetrical in form, with 1 steep edge the spring-loaded pawl grabs. Though tightening the ratchet, the threaded strap rolls across the axle. This motion shortens and tightens the strap through the load. Set of two hooks develop more tie-down points for cargoHooks mount https://zionlapdr.bloguerosa.com/29241544/the-smart-trick-of-car-hauler-straps-that-nobody-is-discussing