Oxidized Brass links chain.
Helmet Dimensions : approx. 1.2 cm diameter
Made with the inspiration of the LEGO pilot/Astronaut/Biker's helmet.
Recommended chain length : 65 cm.
3rd pic : Golden version.
"LEGO® is a trademark of the LEGO Group which does not sponsor, authorize or endorse the creations of Gal Barash".