SERIA Kpop Size Mini Wafer Hard Card Sleeve (10pcs) - For Pre Order - Price: 110 / Pack (100 per pack if you buy at least 3 packs) Size: 59mm x 87 mm ( Side Loading ) - Best for Kpop Cards and some Mini Wafer Japanese Cards like Re Zero , Lovelive & Demon Slayer Wafer cards to name a few. Regular Japanese Size (59mm x 86mm) won't fit with this card sleeve. You need 59mm x 86mm card sleeves (if you prefer perfect fit) or larger up to 62mm x 89mm card sleeves depending on your preference/s.