I like these binders mostly for their durability. The regular binders will fall apart in less than 3 months. I use these binders out in the field in wet and dry conditions I leave them in the van in cold and hot weather. Most other vinyl binders with the cardboard core disintegrate and tear at the seams and have to be thrown out. The first better binder bought 5 years ago is still in very good condition
I bought 5 for my children. It is very strong and durable and last more than two years. It may costs little more but worth it. I will recommend to anyone.