I installed these straplocks on my Les Paul for fear that it embraces the ground one day. Installation is super easy. I had to "grind" in my leather strap to tighten the nut. Everything depends on the thickness of your belt, plus the extremities are fine, the easier it is to install the straps on the belt. Since the 7 months they are on my guitar, I have nothing to declare, the straps are sturdy, they do their job. In short, my guitar is protected and I am rasurré, need I say more ...