This folder is perfect for what it's made. Collecting baseball cards. I just got into baseball not too long ago so collecting baseball cards would eventually happen for me. Anyways. I bought this folder because it looked really cool. Had a baseball feel, theme to the folder already. & the price wasn't that bad to be able to fit 900 cards.I ended up putting the 2022 topps complete box set in the folder & that holds like 665 cards. So I have a few pages left to fill up some baseball cards.The only downside to this is that the pages for whatever reason have 4 holes instead of 3. So its like you can't add any or take any pages with you. But other then that, it's a pretty cool baseball folder for your cards.Loved the design and color of this binder for baseball cards. Fits a lot of cards and is great for a new baseball card collector. Like how it zips up and size is just right for kid's small hands. Perfect card holder.What did you like ? The zipper enclosed binder. the binder lookWhat did you not like? The sleeves are very poor quality each pocket holds two cards so you can only see one side of the card without removing the card.Overall. Not for a collector, great for everyday handled cards.Stick with Ultra Pro or a better sleeve and just get a quality binderMy 10 year old grandson loved it. It was just what he wanted for his cards.This is a 4 ring binder so you cannot add extra pages.