Extra Choice - Badges

Badges at the bottom:

Geology, Astronomy, Mechanics, Biology

(Left to Right) 

Choose one from four

Alum :  32 USD

Brass (with anti-oxidation layer) :  45USD

All four pack （ including the one in the Case）: 

Alum :  70 USD

Brass (with anti-oxidation layer) :  110 USD