These are not dies but hot foil glimmer plates
I thought I had bought dies, but these appear to be hot foil Glimmer plates.
This is the reason for me not recommending them to friends who do not have a hot foil machine.
I have tried letter press with them but I find it difficult on colored card stock, as only white embossing shows up and not gold embossing. Gold embossing on white card stock shows up really well.
So even though I was disappointed, they are still useable for letterpress. I really like the sentiments though.
I wish these came as dies.