From Pathfinder Core Rulebook, which isn't enabled.

Rod of Negation

ITEM 14

Price 4300 gp

Usage held in 1 hand

Bulk 1

This long, plain, leaden rod can disrupt magic.

Activate Interact

Effect This rod emits a thin, gray beam that negates a spell or magic item, casting a 6th-rank Dispel Magic spell with a counteract modifier of 1d20+23. Once activated, the rod can't be activated again for 2d6 hours.

Pathfinder Core RulebookOGL