You open a small portal into a personal demiplane that can store small objects.

Component Cost: 1,000 gp
Market Price: 2,600 gp
Key Skill: Arcana
Level: 12
Category: Warding
Time: 10 minutes
Duration: Special

You create a small, personal demiplane that can store nonliving items of up to 250 pounds. The demiplane has a portal that is 6 inches in diameter and is always open. The portal floats near you or can be affixed to your clothing (like a pocket), and you can retrieve items from the portal as a minor action. The portal is visible to others, and it moves with you at your speed.
    At the completion of the ritual, make an Arcana check. The result determines how long the portal stays open. If the portal closes before you retrieve the stowed objects, they appear at your feet.

Arcane Check ResultDuration
19 or lower1 day
20–297 days
30–3930 days
40 or higher1 year

Published in Manual of the Planes, page(s) 150.