Description of the size of the wig: 1/6 6-7“ (16-17cm Head Circumference, 15.5 head circumference is too large, it is recommended to prepare silicone headgear. ) 1/4 7-8“ (18-19cm Head Circumference, 17.5cm head circumference is too large, it is recommended to prepare silicone headgear.) 1/3 8-9” (22-23cm Head Circumference, The head circumference of 21.5cm is too large. It is recommended to prepare a silicone headgear. Include : Wig Only, not include the doll and other accessories! ******************************* You can buy wigs at this link (it can protecting head from wig color stain and fixing the wig on the head.) https://www.etsy.com/listing/859565044/bjd-silicone-headcap-for-112-18-16-14-13?ref=shop_home_active_1&frs=1 Please measure the head circumference before buying a wig, which is usually a little smaller than the official mark Hair process is complex, new products will inevitably have some floating hair, flying hair. Take it and shake it clean, spray it with care liquid and comb it neatly. Light-colored wigs may leak out of the net, which is affected by the hair color itself, not by the amount of hair. Due to the difference of the display screen, there may be a slight chromatic aberration, the color shall prevail. If the bangs on both sides are warped due to packaging, please use the steam pressure to restore the shape. For other baby brands, please check the head size parameters stated above. Any head size smaller or close to this hair size can be worn. For a baby with a small head circumference, please wear a headgear or head sticker~ If you don’t know whether the size suit for your doll,please contact us to check for it. Thank you!