This stamping plate is from the forth Bundle Monster set, the first CYO (create your own). It is backed with branded lining to stop it from being sharp, comes covered with a blue cellophane sticker which you have to peel off before use.
BM411 has four full nail images and two smaller ones. I really like this plate, especially the patchwork image. I found the line image really hard to work with. Quite large, deep carved images which are harder to work with as well as getting the lines perfectly lined up straight.
You can see all of the designs I have used this plate in here, and some of those are below: