The material seems sturdy and of good quality. The size fits perfectly in the binder and it fits cash bills perfectly too, which is what I wanted it for. Great buy!The plastic envelopes are great and the letters/stickers are durable and not “cheap”. They peel off easily and won’t rip in half, as long as your gentle. But I wish there was more letters of the common ones. Only 2 E’s or S’s on each sheet? I could use that in one word. Give more common letters and less uncommon ones.Great to make budget bindersquick to load into the binder sturdy to withstand useSecond time ordering this product and I love it. They are durable, sturdy..the zippers work well and they also are delivered pretty fast as well which is always a plus.This is the 2nd set of clear envelopes that I have bought I used the first set and knew I was going to buy more. Supportive of the items I place inside so far. Would recommendExactly as described! Will be ordering again.Nice product and price reasonablethe holes were not completely cut out for them to be placed in a binder so you will get little circles everywhere from having to do it yourself