Aron (Japanese: ココドラ Cokodora) is a dual-type Steel/Rock Pokémon. It evolves into Lairon starting at level 32, which evolves into Aggron starting at level 42.
Aron has a round body, four stubby legs, and a large, round head. Its body is dark gray and its eyes are a pale blue. Portions of steel armor cover its head, legs, and back, which has a single spike on it. Throughout Aron's body are small openings in the armor: six on its head (three on either side), with the two largest being openings for its eyes, and one on either side of the spike on its back. A new suit of armor is made when it evolves. The old, discarded armor is salvaged as metal for making iron products.