3mm 4mm Cord Lock Adjuster
We have them in 29 great colours.
You can purchase in packs of 1, 2, 4, 8 and 16.
The more you buy the better the price per clasp.
Used on bags, coats, gym trousers, anoraks etc.
These have 2 holes. Each hole is can take a 3mm cord but I have also managed to get up to a 4mm cord though as well. It depends on if it can squash down.
We do have another listing for toggles that have a single hole.