1. Material: wool
2. Adult hat weight: 100g or so
3. Children's hat weight: 50g or so
4. Suitable for the crowd: parent-child
5. Edge shape: curling
6. Cap style: dome
7. Adult hat height: 30cm (including the height of the hair ball)
8. Adult hat circumference: 16cm (can be stretched to 65cm)
9. Child hat height: 24cm (including the height of the hair ball)
10. Children's hat circumference: 14cm (can be stretched to 27cm)