Meowcafe Premium CPP Card Sleeve 400 Sleeves Double Sleeving Bundle Set. This Set Includes: 58x89mm Inner Sleeve (200 Sleeves), 61x91mm Outer Sleeve (200 Sleeves) The Easier Way to Organize Your Photocard Sleeves Collection * We Created the Box Design of Photocard Sleeve to Help you Maintain a Clean Desktop space while being able to easily retrieve your photocard Sleeve. * The Box can be used to store sleeved photocard as well (one box can store 50-60 Single-sleeved photocards Box Dimension: 64 x 94 x30 mm - Material: CPP ( Cast Unoriented Polypropylene) - One Box Contains 100 Sleeves. - Features: PVC-Free and Acid-Free, Tear-resistant, strong and Clear - CPP is stronger, here is why: the process to manufacture CPP requires the polymer to have a higher density and strength to withstand being pulled from different directions which makes it more tear-resistant - CPP Sleeve is harder, so make it a bit not as smooth to slide in the card, but once the card is in, it provides more protection