Book Earrings M — b grade

Size: M (2.5x2 cm) & L (3x2 cm)

A - L

B - M

C - L

D - M

E - L

F - M

what is a b-grade?

a b-grade is when a product is not up to standard which is why it cost less than the a-grades. 
in this case it could be marks, wonky corners or a tear.