Color symbol pewter keychain. Reinforce those keys of yours with some good old-fashioned dark knight goodness with the batman color symbol pewter keychain. Measuring 2.5 inches across the batman color symbol pewter keychain is your standard oval keychain featuring the black and yellow batman symbol made famous in the 1980s. Solid in construction the batman color symbol pewter keychain will get you looks from your friends and hopefully adam west. Hopefully.