A video tutorial for the medium size is available in my YouTube channel
https://youtu.be/bPw1h9DV0TU?si=8KoNA3G5MSYg2Gc_

The pattern is available for 5 sizes
XS
Width of finished item - 39.5 cm (15.5 inch)
Length - 48 cm (19 inch)

S
Width of finished item - 45.5 cm (18 inch)
Length - 48 cm (19 inch)

M
Width of finished item - 51.5 cm (20.25 inch)
Length - 54.5 cm (21.5 inch)

L
Width of finished item - 57 cm (22.5 inch)
Length - 57.5 cm (22.5 inch)

XL/XXL
Width of finished item - 63 cm (25 inch)
Length - 60 cm (23.5 inch)

Length can be adjusted by increasing or decreasing the repeats