Binditek 12 Pack Plastic Binding Comb Spines, 1-1/2 Inch Diameter, 310 Sheet Capacity, 19 Ring, for Letter Size, Black, for Students and Coworkers

Works well with my binder. I have even manually bound things, after my kids unbound them. They stayed sturdy and round thru so that. Not brittle at all.

Product works well for a large project

Worked great. Being a newbie to using them, I had a little trouble in the beginning but got the hang of it.

I love this product. It works like a charm and it's' easy to utilize. I've put in it and taken it out probably over ten times (with well over 100 pages) and it's easy to replace. Better than the small ones. It's also very durable. I didn't think I would like the size, but the size is perfect because it allows for the pages to turn without getting messed up. Thanks a lot!

I originally purchased this item thinking that the size was correct. Sadly, even though it states 150 sheet capacity...that is way too many sheets to bind. It works great for around 100 pages or so, it is not easy to insert any amount of pages, but I am pretty sure that is due to operator error and the binding machine that I have. I purchased a sampler set of spines so that I can make better choices for the amount of papers I am inserting.

Great item. Excellent Quality. Fast Shipping. Good Customer Service.

Easy to use and great quality. Highly recommend

Buena calidad

She sead it worked well ,she's happy

Perfect

Strong and durable and holds up to 250 pages with out any issues! I used these bonding for my law exam materials and it worked easily and effortlessly! Price for product is on point ! Highly recommend ! Saved me hundred of dollars going to staples to have materials bind! Look for the Amazon binding machine for the complete set to create your at home bindings!