This is meant to be a reusable alternative for storing the straw of an electronics duster can when not in use. It is a snug fit on the can I designed it for and will snap on pretty hard, so be warned, watch your fingers! I recommend sliding it on from the top of the can so it doesn't snap on so hard. I made it snug on the can so it actually stays on the can and doesn't slip and move around. The straw will be tight the first time you press it into the clip, but it will loosen up after a few uses. I printed it in PLA, haven't tried any other plastics. It won't fit every type of can or straw, but it should fit most.