Apple 12 Bumper Guard

I'm looking for a bumper guard/ screen protector for my apple watch 12 46mm. I just received it in the mail last night. I ordered on from amazon it said it would fit a apple watch 12 46mm but it did not fit. I looked on the apple website and online in several places. There isn't one out there that I could find that truly will fit. When will those come out to fit it?