Sticky Stabilizer, what is it?
A tear away stabilizer with a sticky side which has a waxy paper covering it. Hoop the stabilizer with the waxy side facing up. Use a pin or sharp seam ripper, score around waxy paper, peel up the waxy paper leaving the sticky side exposed.
Sticky paper is great when stitching up onesies and mittens. I’ve used it since 1997 without problems. Use a quality brand and you will be pleased with the results.