Bikkuriman Sleeves Collection Sleeves We also have listings for 50 to 500 sleeves. If you need more than that, please leave a comment. Storage bag for 48mm square items. For protecting collection stickers. These are hard sleeves, not soft, so they provide even stronger protection against scratches on the main item. I've tried various thicknesses, and this one is just right. Thinner ones feel flimsy, and thicker ones lose transparency, so this is the thickness I settled on. Many people have asked about refills, so I'll include that information here. For refills, please search for "R YSV-BDH81 pocket refill". I use them myself. There are two types: 20-pocket and 12-pocket. The 20-pocket is for 42mm square items, and the 12-pocket is for 52mm square items. (For single sleeves) The 20-pocket can store 240 stickers, and the 12-pocket can store 144 stickers. I store old Bikkuriman with double sleeves and Bikkuriman 2000 with single sleeves, unifying the refill sizes. For old Bikkuriman, I think the 12-pocket is suitable for arrangement. There are various types of refills, some where stickers fall out easily if turned upside down, and some that are thin and flimsy. The YSV-BDH81 refill is a reliable choice. For those who want even stronger protection, I also sell 52mm square sleeves in a separate listing. You can also put a 52mm square sleeve over the 48mm square sleeve. How about perfect protection with double sleeves? These are made in Japan, but please understand that there may be slight dimensional errors due to machine specifications. Shipping Mercari delivery. Simple packaging. Applicable Items Old Bikkuriman Bikkuriman Bokura no Bikkuriman Gamu Ra Twist Dokidoki Gakuen Harimao no Densetsu Time Slip Battle Tenshi Darake no Bikkuriman Akuma Darake no Bikkuriman Dragon Ball Man Pokemon Wafer 48mm Square Stickers Thank you very much m(__)m