Applicable age: 3 years old, 4 years old, 5 years old, 6 years old, 7 years old, 8 years old, 9 years old, 10 years old, 11 years old, 12 years old, 13 years old, 14 years old and over 14 years old
Applicable gender: neutral
Color classification: roller, wave hob, round hob tool/mold
