Carbon Keychain:
Carbon fiber under a crystal clear urethane coating. Chrome or anodized backing. Chromed chain, and ring. Oval Measures 2.5"x1".

Piston Keychain:
Chromed, mini piston and rod. Articulated, the piston features ring grooves and a wristpin allowing it to swivel just like the real thing. Piston and rod measure 1.75"x .625".