About this 3D model

Made for a school project. This is meant to hold re-purpose the everyday plastic shopping bag into a trash bag. It pinches the bag between the first and second then third and fourth to form a solid mouth for which to put trash in. I don't have a picture of it here, but there are two magnets that hold the second and third frame together, while coming apart with minimal effort. I first came up with this idea when I was driving and tried putting a half-emplty bottle of flat soda into a plastic bag on the floor of my passenger seat. Because I was driving, I couldn't really see what I was doing and ended up getting soda all over my car. So this is meant to be mounted in a car, which could be easily accomplished with some string wrapped around a frame then closed in your dashboard.