4 Inch - Newborn to 6 Months, 4.5 Inch - 6 Months to 12 Months, 5 Inch - 12 Months to 4 Years, 5.5 Inch - 4 Years to 8 Years, 6 Inch - Adult Small, 6.5 Inch - Adult S/M, 7 Inch - Adult Medium, 7.5 Inch - Adult M/L, 8 Inch - Adult Large, 10 Inch - Anklet, 11 Inch - Choker, 13 Inch Necklace, 14-16 Inch Necklace