Inaccurate?

Amulet of Natural Armor +5

Magic Item
(Dungeon Master's Guide v.3.5, p. 246)

Price: 50,000 gp
Body Slot: Throat
Caster Level: 5th
Aura: Faint; (DC 17) Transmutation
Activation:
Weight: — lb.

This amulet, usually crafted from bone or beast scales, toughens the wearer's body and flesh, giving him an enhancement bonus to his natural armor bonus of +5.

Prerequisites: Craft Wondrous Item , Barkskin creator?s caster level must be at least 3x the amulet?s bon.

Cost to Create: 25,000 gp, 2,000 XP, 50 day(s).