I've always worn either leather belts or canvas belts, both of which require a metal buckle that keeps me in airports, theme parks, government buildings, almost anywhere there is a metal detector. And who doesn't like getting dressed in front of dozens of people because you have to remove your belt to enter a place? This is the perfect solution. These straps are strong and will not slip when the plastic buckle is engaged. They are adjustable so you can cut the strap to the length you want, use a flame to melt the cut end a bit and you're good to go. It even includes a small elastic band to keep the extra belt snug around your waist instead of sticking out. I would buy them again.