Calling all card collectors! Protect your valuable trading cards with these super convenient cardboard mailing sleeves. You get 200 pieces in each pack - plenty for your entire collection! Each sleeve measures about 4.5 x 3.5 inches when folded (9 inches total length), perfect for standard sports cards, trading cards, and collectibles. The foldable design makes them super easy to use - no glue or tape needed, just slide your card in and fold. Made from sturdy kraft paper that's thick enough to protect your cards from bending, dust, and damage during shipping or storage. They're flat when not in use so they don't take up much space. Great for organizing baseball, basketball, football, hockey, or any trading cards. Perfect for when you're shipping cards to friends, storing your collection, or bringing cards to trading events. The neutral white color looks clean and professional. Honestly, at this price for 200 sleeves, it's a steal compared to what you'd pay at hobby shops. Keep your cards safe and organized without breaking the bank!