These straps are made from 50mm (2") wide polypropylene webbing with a ladderlock buckle sewn on one end. The ladderlock is a buckle with no moving parts which uses a highly angled bar to control the movement of thewebbing. It is very eady to tighten the strap and once released, the webbing will be retained by the buckle. You then lift the bckle using the finger hold to release the webbing. These come with an optional triglide retaining buckle which can be ued to tidy up the free end and to ensure the webbing does not slip.