the roller on the buckle makes for an easy feed-through of the material through the buckle.
|Title||Roller buckle slim black 16 mm, Ø 2 mm (ea)|
We measure the inside of the buckles, O-ring etc. (= the size of the leather belt that can go through it)
The size of O-rings is the inside diameter, and with the D-rings we measure the inside of the straight side.