GBC Binding Spines/Spirals/Coils, 16mm, 125 Sheet Capacity, 4:1 Pitch, Color Coil, Black, 100 Pack (9665070)

These are great. I was able to use them to bind booklets (30 pages) for my students. The description says it is good for up to 45 pages, and this seems right. It was a great deal and I would definitely buy them again.

GBC is my preferred brand. These were a reasonable price and came promptly.

I’ve made plenty books with these coils already. At first I wondered how you bend the plastic with breaking it. Whatever material it’s made of they bend crimp easily and still stand up to wear and tear of the kiddos. I’m a bit of a cheapskate and like to reuse them. And they do very well under multiply yearly , use.

If I can help it, I will only buy this brand of coils. I have three of their other sizes in this brand and one size of another brand. I greatly prefer this brand because the diameter of the coil is minutely smaller and it makes ALL the difference for ease of assembly and page turning. The paper slides over these coils as opposed to dragging.

I've ordered these 3 times. Half the price as elsewhere for this type of product. A tad less sturdy but more than adequate. I'm afraid that if I recommend them too hardily, they may raise the price due to increased business.

Satisfied with my purchase.

Got these to bind my teacher and student notebooks. For the price it was a great value and they are easy to use.

These are excellent spiral binding coils worth every cent. I use these to bind a manual for a training company and they are flawless. The 18mm coil I am using is holding an 8 mil plastic cover, a 32 pound photo page, 134 sheets of 20 pound letter paper, and a 12 mil vinyl back cover.There were no flaws in any of the coils. I am very pleased.