A white round P.V.C. base with 3 clear compartments featuring digits from 0 to 9.
A double elastic band and hooks hold it to the cheek straps.
Sold in single units.
A white round P.V.C. base with 3 clear compartments featuring digits from 0 to 9.
A double elastic band and hooks hold it to the cheek straps.
Sold in single units.