Rayson Click Binding Spines, 34-Hole Click Binding Ring for A4 and U.S. Letter Size Paper, Multi-Color, 1/2" Diameter, 3:1 Pitch, Binds Up to 90 Sheets, 30 Pack

This is a great and easy to use binding system for anyone who wants to make their own books. A useful feature is that you can reopen the binding to add more pages.

Fits like they should without breaking.

I want to order more but I hope I can choose colors.

I like how these are really easy to use. You don’t have to line up the spiral thing while twisting it down. However closing these strips can be rough on the hands. Opening them is rough! There’s a tool you can purchase but I feel like there should be an easier way.

I don't know how well it would work with the other colors, but the seams on the transparent ones can be sanded with a nail file/emery board and you can barely notice the difference in texture. That's how I kept my pages from snagging on the seams.If you're thinking about opening and closing them a lot, they're a lot harder to open than the Swingline GBC click spines. Also if you want something you can open and close easily, look up Lihit Lab Twist Ring notebooks; those are the same pitch (number of holes) and they have a spring loaded opening and closing mechanism.

Bought whole box of Rayson ProC 1230 M to make notebooks, thinking they are same as STOBOK spirals that work really well. The Rayson spirals do not aligned with regular hole punch so they are useless/worthless until i could find a hole punch that works.

I really wanted to like these. I wanted the colors to help differentiate workbooks, and I wanted the flexibility to add or remove pages. Unfortunately, these have proven to have a major drawback — the papers catch on the binding seam making opening and closing the books very cumbersome and risk tearing the pages.I’m now looking for 3:1 pitch colored wire loop binding to replace these. Very disappointed.

This product had too many loops for my needs and although you can cut them off, the spacing between loops did not match up with the paper holes. I learned what 1:4 and 1:3 pitch meant though.