This case is exactly what I needed for my GBA games.

Protects cartridges well when storing. Can be very difficult to open at times. As noted by another review, if you mistakenly put a cart in the wrong way it can a struggle to get it out again.

Overall, would stl recommend. I may even buy more yet.

They protect your carts and fit snug enough so that it doesn't rattle too much. The only drawback is that if you put the cart backwards or upside down, it's a real struggle to get out. The only indicator of the correct orientation is the arrow on the front of the case

Simple, works great as it should.

Game Boy Advance Game Cartridge Case

I never had covers for any of my Game Boy Advance games, so when I saw these, I figured I'd try them out. The cases fit the games well and protect them from dust and dirt. The only gripe is that they are a bit tricky to open at times.