<br>1/2-doll head Circumference 25.4-30.48cm need about 4PCS. <br>1/3-doll Small head Circumference 20.32-22.86cm need about 3PCS. <br>1/3-doll Big Circumference 20.32-22.86cm need about 3PCS. <br>1/4-doll head Circumference 17.78-20.32cm need about 2PCS. <br>1/6-doll head Circumference 15.24-17.78cm need about 1PC. <br>1/8-doll Small head Circumference 14cm need about 1PC. <br>1/8-doll Big head Circumference need about 1 PC. <br>1/12-doll head Circumference 11-13cm need 1PC.