You need not use any material components in casting your spells.
Prerequisites: Eschew Materials, Spellcraft 25 ranks, ability to cast 9th-level arcane or divine spells.
Benefit: The character may cast spells without any material components. This feat does not affect the need for a focus or divine focus.
Source: Standard Reference Document under Open Game License v1.0a, which updated this feat originally published in the Epic Level Handbook, page 57.