I would probably give this product a 3.5 for pure function, but I will round up! The one I received to put on my Simple Brief had one side that appeared to be cut without the use of a straight edge(a little wobbly). Also, in order to get it on my strap, I had to use a knife to lengthen the holes in order to be able to fit the swivel buckles through. Maybe a slightly larger hole punch should be used, or perhaps offer two sizes if there are different sized brass swivel buckles. It does work to spread the weight though.