Customers most agreed on the following attributes:
This is a great value if you shoot a modern flash with a small nose but they are too small for the 2"x3" lens on my Vivitar flashes
I bought 2 packs of these to be used for effects and color balance with small strobes.
Great product for the money. But it is a little thin and has a hole when you detach it from it's rivet. Besides that, it is great.
Book has wide array, but difficult to get them out encouraging one time use, the upside is at this cost you can get away with one time use