I used Tilda cotton fabrics for both the outer part of the pouches and the lining. The finished size of these pouches is 5 x 5.5 inches.
I came across a simple technique on how to sew these flex frame/snap pouches on the‘upacoHM’ YouTube channel. I was inspired to make these pouches after seeing her demonstrate a simple way to sew these little bags. I adjusted my measurements to accommodate the larger metal flex bands that I had that measured 4.72 inches (approx. 12cm).