Thanks Miriam, I never loooked to see if it said anything on the part that attaches to the shank. In fact, I didn't even look at that part. Dumb me!
Will these plastic button holer templates work in the other button holers too? I have always had the metal ones, and never thought that some would be made of plastic, but now I know. I guess when they started making the gears on the machines in plastic, these came along too in plastic.