Size: 1/3 doll head circumference about 8 to 9 inches (21 to 24 cm), 1/4 doll head circumference about 7 to 8 inches (17.5 to 18.5 cm), 1/6 doll head circumference about 6 to 7 inches (15 to 16.5 cm), Suitable for dolls such as SD, BJD, DD MSD, Obitz but please check your dolls head circumference. )