The Additional Child Materials add-on is for those with multiple children in your household. The original Little Magic Elf Kit comes with materials for one child. Add one additional materials for each additional child you have.
Examples:
If you have 2 children, you will need 1 additional child materials add-on. If you have 3 children, you will need 2 additional child materials add-ons. If you have 4 children, you will need 3 additional child materials add-ons.
