Three chairs total, two adult size and 1 child size. $35 if purchased together. Prices below for purchasing separately. Preference given to selling as a set.

2 Adult Size (one Black and one White, PS Vago) - $15 each if purchased individually.
Link to adult chairs at IKEA: https://www.ikea.com/us/en/catalog/products/10174641/

1 Child Size (Salmon, Bunso) - $10 if purchased separately from adult chairs.
The child's chair does have a little scuffing on each of the corners, due to being well-loved. See close up below.
Link to child chair at IKEA: https://www.ikea.com/us/en/catalog/products/90287413/