1st Birthday Girl Pink Balloon Centerpiece Kit. One 1st Birthday Girl Pink Balloon Centerpiece Kit contains 1 star shaped 18 inch 1st Birthday foil balloon, one styrofoam base with pink metallic fringe, and 3 - 5 inch pink star balloons. Kit also contains straw sticks to inflate and then hold up your air-filled balloons on the base. No helium needed. A great new party decoration idea!