PLCE Roll-pin Belt
Purchased from UK. There is another, more robust version that looks like it has a second layer of webbing sewn to the inner side of the belt. This layer appears a little wider than the belt I purchased--mine is 52mm (2 inches) and the wider belt is advertised as 57mm. However, it may be that the wider looking belt is still 2 inches but they are including the width of the keepers which are necessarily a bit wider than the belt itself.
The belt is not long enough, but I knew that it probably wouldn't be. Now that I can see how it goes I am contemplating buying some webbing and sewing it up myself. I will be able to use the roll-pin buckle and perhaps use the purchased belt for the mini-flare holders. Or I can buy another wider belt and elongate it with the first belt.