These cute little wings are available for free download.
The size will depend on what yarn chosen and hook size used.
Using ILTY sport and a 4mm (G) hook the dimensions came out 20” x 25’.
Using Caron simply soft with a 5mm (H) hook it came out
25” X 30”
Nice preemie size.
You will need 2 colors of yarn, a light and a dark, and use between 400-600 yards of each color.
Use the recommended hook size.
The gauge is not important.