I bought these for covers for mini albums for Christmas presents. It's a nice weight acrylic. The Binderie punched through it easily. I haven't used it with my Bind it All yet.
I used these as covers for 12 address books which I made as Christmas presents. They punched beautifully and provide just the right amount of strength for my books.
I have the Zutter bind it all and the clear acrylic covers are awesome for the mini albums, they cut very easily in the bind it all, makes a very nice cover