From publisher blurb:
Your character's just like everyone else. They put their gloves on one hand at a time. The only difference is that their gloves let them shoot flaming arrows from their fingertips. 50 new magic items that let adventurers dress for success.
Hat of Summoning (monster)
Twice per day, the owner of this hat can remove it, reach inside, and draw out creatures to assist them in battle. This ability functions as a summon monster III spell (as described in the Dungeons & Dragons Player's Handbook, Third Edition) as though it were cast by a 6th level wizard. The wearer produces a small black egg from the hat which, when thrown before them, cracks and produces a full-sized version of the monster specified. This egg will disintegrate if not thrown in one round. They cannot be stockpiled.