SANYE Adjustable Metal 6-Hole Paper Puncher for A3/A4/A5/A6/B4/B5/B7 Six Ring Binder Day Planner Inserts Pages 6 Sheet Capacity (Black)

This seems like a good product but it is really not designed for A4 size paper for a standard spread notebook hole punch.Looks like it might be great for small notebook sizes. It is small. I didn't read the description close enough.I returned the item.