This pattern comes in four sizes:

Child: Wrist size under 6”
Teen: Wrist size approximately 7”
Medium Adult: Wrist size approximately 8.5”
Large Adult: Wrist size 9”
The gauge can easily be altered by changing needle sizes and yarn weight to suit any size and hand/wrist.
This pattern is generally made up in one skein of yarn of one colour however, if you want to change the ribbing color to add emphasis or decoration then that’s great!