Didn't know but this item requires assembly. This is VERY minimal and takes less than 2 minutes. But it comes as a long strap and the buckle is separate. What you do is wrap the strap around your waist and "measure" (I just found out) and then trim off the excess from the non-pointed end. Then you just slide the strap into the buckle and then it just snaps into place and really sticks to it. Then all you have to do is slide the pointed end through the buckle and it just clicks. The trigger mechanism is VERY good. The fit is amazing and it is MUCH larger than the standard pin and hole.