Love these A6 & A5 notebooks. Where could I find a hole punch

Pikadingnis 3 Hole Punch Paper Hole Punch Hole Puncher Ruler Puncher Paper Card Hole Punches Desktop Hole Punch Portable Mini Puncher for DIY Notebook Photo Album Making Handbook Postcards Binder

All Metal Adjustable 6-Hole Paper Puncher, A5 A6 A7 6 Ring Punch with Positioning Mark, 6 Sheet Capacities Puncher for Dairy Planner, Personal, Agenda

These refillable inserts are a must-have addition to your a6 binder accessories. With 6 assorted colors to choose from, you can easily color-code your notes and lists to keep your life on track. Each pack includes 240 colored lined paper sheets for a total of 480 pages. The pages are pre-punched with 6 holes to fit into any standard 6 ring binder, making it easy to add and remove pages as needed.

6-Pack Colored A6 Lined Binder Paper (240 Sheets/480 Pages), 6 Ring Hole Punch Blank Loose Leaf Ruled Refill Inserts for Planner, Journal, Notebooks

Dot Grid Paper Printable - A4, A5, A6, 8x10, pocket, personal, US letter

Inbox/Outbox Planner Tab Dividers

Philofaxy: Other A6 page size combinations.

What your favorite notebook size and why! (A5/A6/A7) : r/notebooks

Atoma hole punch

Guide to Notebook Systems, Part IV: Single Notebooks, or the Non-System System — The Gentleman Stationer