Binditek 100 Pack Plastic Binding Comb Spines, 1/2 Inch Diameter, 90 Sheet Capacity, for Letter Size, Black, for Students and Coworkers

Super product and works as described. The 1/4 inch was too small for the application but the 5/16 inch was perfect. I am using it on a small A5 size pamphlet with 29 pages of 21 pound paper with a 65 pound front and back cover.

These always work the way you want them too. This size is not too small and not too large. Quality item.

Just as described.

First time using this size, I usually use 3/8 I wanted more room because I am using card stock.

I use these for my accounting practice. They work and look great for binding tax returns or other documents.

Easy to use, great quality!

Made 52 mini ABC booklets for my students they worked great and durable

I used these to bind my students' art booklets in class and they worked perfectly!