HOUYEE 100 Pack Plastic Spiral Binding Coils, 8mm(5/16"),40 Sheet Capacity,4:1 Pitch, (Black)

Wanted to make a spiral notebook and it turned out just as I imagined it would. These were perfect for my project, easy to trim to size and run through the holes. I’ll be making a lot more!

I bought this brand because the vendor had all sizes in in. on one page, not a different size in cm on all different pages. I found them to be thinner and much more flexible than the Trubind brand. They worked, but were too flexible to be driven through the holes automatically by the spinning rubber wheel. I manually twisted the coils through about six books. The size I had of the Trubind coils twisted into the holes perfectly.

The box is mislabeled. I ordered the 1/4, which is stated on the top, but received the 3/4, which was labeled on the side....

So many time publishers make books with glued bindings that would really be better served to have a spiral binding for the reader or user. These binding coils were purchased just for that purpose. I have them shut and then bound. By providing the spiral it cuts down on the cost. Love doing this for anything instead of 3-ring binders too! Great product! I do suggest a hard plastic backer piece and hard clear piece for the top to maintain the “book” in good shape during use for the pages will rip out.