Thanks curious. The idea was that the two bits would flex as they are pushed through the hole, so there's no reinforcement because those parts are supposed to flex. But I guess there will be stress concentration at the base, so i'll think about how to spread that out a bit. The clip is for a door trim in a car, so i thought PLA would not handle the temperature of the car sitting in the sun. If you think PLA could handle that i'll give it a try tho.