About this 3D model

ID Holder for Retractable Lanyards. To assemble: Glue the 2 main pieces together, after they dry, insert up to 2 cards, insert the top filler piece (no glue), then push the keeper pin through all the holes (it's tight so get it aligned well first). This will keep your cards secure. You can then remove the pin and filler piece to remove/replace the cards.