Thule Backpack Replacement Zipper Lug

My Thule backpacks lugs perished as they were a rubber, which made it difficult opening/closing the bag. As I'm fond of the bag, I wanted to fix it rather than just get another one (also they don't make it any more). Apex3D made a great model here - https://makerworld.com/en/models/399681-thule-zipper however I wanted one which kept the metal tabs, which you could just glue into place. They're a tight fit, though this will probably losen as they get exposed to the sun, so add a bit of superglue.