A review for Square stickers by Keith Babberney.
The stickers are thinner vinyl than some I've seen, so I am a little concerned about durability, but they seem okay. The backing paper is very hard to separate from the sticker. If I didn't know they were stickers, I might have fumbled with the corner awhile and finally decided they were just cards and given up.
Also, now that I see them IRL, I wish my design was a little different. I would beef up some of the lines so they pop more if I did another batch.
But I got what I ordered at a pretty cheap price. No real complaints.
Update: the vinyl shrank slightly over time, so now they are easy to peel. It is thicker and more durable than I expected. These are excellent stickers for a good price.