DRITZ-Pillow Corner Template. Create perfect knife edged pillows! This template is a guide to mark and trim excess corner fabric from pillows. Square-cut corners on knife edged pillows cannot be stuffed properly; they pucker and become dog-eared. By simply following the curve of this acetate template the excess fabric is removed and pillows appear to be perfectly square when stuffed. Centering marks allow for easy measuring fro pillows from 12in to 20in. This package contains one 10x7in template and complete instructions. Imported.