A player infusing pouches at a Summoning Obelisk

A player infusing pouches at a Summoning Obelisk:

Summoning pouches are used to summon familiars. The creation of a pouch is relatively simple: the pouch is infused with the essence of a creature, or familiar, at a Summoning Obelisk which can then be summoned using the pouch. Infusing pouches yields experience in summoning. A pouch is used up when a familiar is summoned, and it is not restored when the familiar is dismissed.

Note that certain types of noted pouches (bloated leech, bronze minotaur, and other high shard pouches) can be sold to the ogre Bogrog to get up to 1 shard per 20 gold coins of pouch value.