The Master Chief is a towering biochemically and cybernetically-enhanced supersoldier, raised and trained from an early age to be a weapon; he is almost faceless, never seen without his green-colored armor and helmet. He is commonly referred to by his naval rank, rather than his given birth-name or serial-designation. Custom printed blocks may vary slightly from photos. Compatible but not made by or licensed by major brands. This is not a LEGO® Product. LEGO® is a trademark of the LEGO® Group, which does not sponsor or endorse this product. Warning Choking hazard - Figure contains small parts. Not for children 5 and under.