I tried to make refills for my homemade sticker album, but it was too much trouble and I gave up. Used once. It has been stored at home, so there are slight scratches, but the blade is clean, so the holes will be punched cleanly! This is a 4mm hole punch for loose-leaf paper, compatible with A8 (mini) / A7 / A6 / A5 paper sizes. With an adjustable guide. You can freely set the hole spacing, so it can be used for multiple purposes with one unit. Product Features ・Multi-size compatible: A8 (M5) / A7 / A6 / A5 compatible! ・4mm hole diameter: Standard size for smooth ring insertion ・Adjustable 3-hole/multi-hole: Perfect for diaries, savings binders, planners, and office documents ・Lightweight ABS material: Reduces fatigue even with prolonged use ・Durable metal blade: Clean hole punching, less paper jams Product Specifications Material: ABS resin + metal blade Hole diameter: 4mm Compatible sizes: A8 / A7 / A6 / A5