One Package makes 4 Large Bowl Cozies. With this project you MUST use 100% cotton thread and 100% cotton fabrics ONLY. 100% cotton pre-cut batting to make a microwave bowl cozy. Instructions: Place pre-cut batting on the wrong side of a 15 inch square of cotton fabric. Using 100 % cotton thread, fold and stitch darts 1/4 inch away from the batting cut edge. Trim out fabric excess. Repeat with second square of cotton and pre-cut batting. Put right sides together and stitch around the outer edge. Leave an opening for turning. Turn and stitch the opening closed.