Oval Cord Lock
I bought three different style cord locks to use with a homemade face mask. I wanted a way to easily tighten the ribbons that hold my mask. Although this size is a little bigger than I would have liked, it tightens better than the 2-holed variety. I also bought micro-cord locks and they are too small to fit the ribbon through. However if I make masks using thin shoestring, I think the micros will work best.