Tail
To fit waist measurements:
12/18 mos 21” 53.5 cm
2/4 yrs 23” 58.5 cm
Finished measurements:
12/18 mos 3” x 20” 7.5 cm x 51 cm
2/4 yrs 3”x 27” 7.5 cm x 68.5 cm

Hat
To fit head sizes:
12/18 mos 18½“ 47 cm circumference
2/4 years 19” 48 cm circumference

Gauges
Tail: 12 sc and 13 rows = 4” 10 cm with larger hook.
Hat: 13 sc and 14 rows = 4” 10 cm with smaller hook.