I've used this product in several situations including to secure ankles to keep someone from being able to run or kick. This product is better because the teeth on the clip are sharp and keep the strap from sliding. Other products aren't as sharp and I was able to loosen the strap just by separating my feet. Do not get a knock off of this product, this one will not be loosened by a subject and stays secure.
Very good product, hard to find.