Internal Compartment Feat 1
Source Pathfinder Lost Omens: Ancestry Guide
You can hide a small object of up to light Bulk inside a hollow cavity on one of your forearms. It takes three Interact actions to store an object in this way.
You gain a +4 circumstance bonus to the DCs of checks for others to Seek or Steal objects stored inside your arm.
If you store a weapon in your arm, you can use a single action to Interact to draw the weapon into the hand corresponding to your internal cavity, then Strike with the weapon.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
AndroidA synthetic humanoid ancestry created by artificial means. Most common in Numeria.