We could not specify an exact position number due to varying facial skeleton by individuals, but the average location of the P-plate is as follows by the HEADrang size.

S size: Small face (13cm or smaller) - adjusting scale: 3-4

M size: Medium face (13-15.5cm) - adjusting scale: 5-6

L size: Large face (15.5cm or over) - adjusting scale: 6-7

※ The above cm criteria are the lateral distance between side cheek bones; consult the face size measuring method by clicking the size wear method under the category of the product introduction on our HEADrang homepage.

Just refer to the above criteria because each individual has different face shape and skeleton.