From publisher blurb:
Items both magical and mundane have a long and storied history in adventuring. Everything from the humble steel mirror to great and terrible mystical artifacts have been used on the fields of battle and in deadly dungeons. With Steelforge, Dreamscarred Press brings a new arsenal of useful tools and wondrous treasures, to add greater variety to your choices of items as a player and to your campaign world as a GM.
Steelforge: Book 1 is a 16-page supplement that includes:
New magic and psionic items.
New versions of common magic items, allowing for greater flexibility when outfitting a character.
The unique Endeca's gregarious gravity slimes and an associated prestige class that tames them, the Gravity Slime master.
A variant ruleset for handling items in your campaign, designed to help alleviate the Christmas Tree Effect