Arcube’s sleeves are made of 6 mil crystal clear vinyl. Our sleeves come in four sizes. They are designed to fit our 58mm, 63mm, 66mm, and 80mm cut discs. The 80mm minidisc sleeves come in an eight-up sheet. All other sizes come in ten-up sheets. The sheets are superior to individually-sleeved discs for shipment, carrying, and distribution. Arcube will separate sleeves for a nominal fee. Here are the dimensions of Arcube’s standard sleeves.