Tightening clip for swimming goggles

A replacement tightening clip for a strap on a pair of Tyr swimming goggles, but will fit many others too. I guess this is some sort of [standard adjusting mechanism](http://www.zoggs.com/skin/frontend/zoggs/default/images/goggle_guide/strap_systems/standard_adjust.jpg) than can be found on many basic swimming goggles from different manufacturers.