Two-piece ultra clear box with double wall strength, 2-Compartment. Sized to hold:- ONE-TOUCH magnetic holders up to 360pt- 3x4 Toploaders up to 360pt- 1-Screw Screwdowns- Recessed Mini Snaps- Mini Snaps- Card Preserver TM Sleeves Holds 300 Standard size cards up to 2-1/2" x 3-1/2" in Ultra PRO Penny Sleeves (81126) Can also hold 100 cards in Ultra PRO 3x4 Regular Toploaders (81222) Square corners with double wall strength Ultra clear and stackable No PVC / Acid Free