Linked TCG Display Shelf

This is a wall mounted shelf that I designed to display my Pokémon cards, I wanted an led display shelf but didn't want to pay the $60 that the amazon listings charge, while they may be nicer this is a good and much cheaper alternative. Each shelf can fit up to 3 cards, though with PSA slabs its just barely too little, you might be able to fit 3 slabs on one row but it might be a challenge. You can print each shelf off separately and link them together with the plastic pieces sticking out of the bottom of the shelf, I designed them so they would only need 2 screws on the top shelf and since trading cards are typically light weight you should be fine putting it in drywall, the one in the pictures is using drywall screws. The LEDs I used can be swapped but here are the ones that I used: https://www.amazon.com/dp/B08F5C8L1W?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 If you are going to buy a different LED strip I would keep the led strip length at around 200mm if possible but the thickness of