From the manufacturer
Food Grade Plastic
This product is made from food grade plastic that does not degrade and change in composition with the food acids. The clips are made out of virgin plastic.
This plastic food bag clip comes with a self-locking design that allows the clip to lock on to its self without the help of other tools.
This product can be used for multiple bags made of plastic and paper. The unique design helps it to clip on to different types of food bags.