EFFICIENT 10-HOLE PUNCHER：Our 10-hole binding machine punches up to 10 sheets at once, perfect for planners and binders. The hole spacing of 3/8" (9.5mm) and 7/32" (5.5mm) hole diameter offers versatile hole placement for any project TRIMMABLE SPIRAL BINDING COILS：Includes 10 spiral binding coils (2 pink, 2 mint green, 2 white, 4 translucent). Coils hold up to 75 sheets and are trimmable to fit various paper sizes DESIGN FOR EASY USE：With sharp punching heads, our binder machine includes a bonus blue zipper for easily opening coils during paper refills. A built-in paper guide ensures easy alignment for different paper sizes, while a chip tray simplifies cleanup FOR CREATIVE PROJECTS：Customize your planner and notebooks with this easy-to-use binding machine. Ideal for DIY crafts, scrapbooks, school projects, and home organization. Add personalized touches to your creative work PRECISE HOLE ALIGNMENT FOR BINDING：Equipped with a positioning post, this binder machine punches 26 holes in b5, 30 holes in a4, and 20 holes in a5 paper, only 28 holes in the letter size paper