approximate 1/4 seam allowance.
These have been sized down from an unsewn size of 8 inches which just seemed too large to an unsewn length of 6 inch. Could be sewn right sides together and turned, sewn wrong sides together with pinked edges or sewn with a satin stitch. Sized on wallpaper at 18 across 24 inches and just about 4 inches high could use for decals cut from the peel n' stick paper.