All those apexes are uniformly positioned but asymmetrical in form, with one particular steep edge the spring-loaded pawl grabs. Whilst tightening the ratchet, the threaded strap rolls throughout the axle. This motion shortens and tightens the strap through the load. Basket straps encapsulate the tire for a comfortable, secure https://carcarriersupplies.com/product-category/ratchet-tie-down-straps/