Treasure Tree Adam

Adam Wood is the strongest and highest quality type of wood found in the One Piece world. It is so rare that it is considered a great treasure. Occasionally this wood is sold on the black market. Because of its value it is sold at a very high price (Franky brought some for 200,000,000 Belli).

Both the ships the Oro Jackson and the Thousand Sunny were made from this type of wood. The wood is so strong it is able to take cannonballs and gun fire quite easily showing little wear over time. However, even ships built of this wood need a shipwright to look after them as it is not completely invincible.