Each time you slip your hand inside this quiver, you find the ammunition you need waiting for you.
Wondrous Item 4,200 gp
When you attack with a bow or a crossbow, you can reach into the quiver, causing the quiver to produce a nonmagical arrow or bolt for the attack. Ammunition created by the quiver that is not used within 1 round of its creation disappears. For all other ammunition, the quiver works like a normal item of its type.
Published in Adventurer's Vault, page(s) 171, Mordenkainen's Magnificent Emporium, page(s) 83.