Gimmick. Sort of works at untucking when raising your arms...kinda...but it fails at pretty much all of its other claims.plus it's expensive. For less than half the cost you can get a heroes pride belt that works 1000 times better. I've used one since my days in the military and still wear one to this day and it's a simple cheaper solution. Thought this magnet gizmo would be an easier method but the classics never die. Get a heroes pride belt, available from several vendors on Amazon and don't waste your money on gimmicks like I did with this product unless you want to hang your kid's artwork on the fridge...works great for that.