64x89mm Perfect Fit Card SLEEVES Protector Trading Cards Super Hard Standard Transparent Inner Clear Card Cover - AliExpress
KMC Perfect Fit / Size Card Sleeves, Hobbies & Toys, Toys & Games on Carousell
I really like these "KMC Perfect Fit" sleeves. They're affordable and provide a great seal, as well as fit into binders. What sleeves do you use? And are there any drawbacks to