On a 16 inch chain (40cm) for ages perhaps 5 - teens, what a great gift idea, one that she'll love.  For all those birthday party invitations your daughters bring home from school, an affordable gift that she'll love to give and you can be sure will be received with real appreciation.  Your gift comes on a card with the dates to which each symbol pertains and a brief outline of her zodiac "character!"  We also have Aquarius necklaces in plain steel in this category, if you would prefer.