These fabric pieces were 7 inches by 5 inches. The zipper was 9 inches and the zipper tabs were 2.5" squares.
Today I measured my cell phone and made another. These fabric pieces are 7 inches by 3.5 inches, zipper is 9 inches and zipper tabs are 2.5 by 2.5 inches. I did box the corners but did not like the look, so I ripped them out.
100% quilting cotton on the inside.
Recycled denim jeans on the outside.
The fit is good.
Thank you Deby at So Sew Easy for the excellent tutorial and video.