Aura strong (no school); CL 17th; Weight 5 lbs.; Price varies by specific type: lesser 3,000 gp, standard 11,000 gp, greater 24,500 gp
The wielder can cast up to three spells per day as though using the Still Spell feat.
Cost varies by specific type: Lesser 1,500 gp, Standard 5,500 gp, greater 12,250 gp
FYI: Lesser and Greater Metamagic Rods
Normal metamagic rods can be used with spells of 6th level or lower. Lesser rods can be used with spells of 3rd level or lower, while greater rods can be used with spells of 9th level or lower.
Pathfinder Roleplaying Game: Ultimate Equipment (OGL) © 2012, Paizo Publishing, LLC; Authors: Dennis Baker, Jesse Benner, Benjamin Bruck, Ross Byers, Brian J. Cortijo, Ryan Costello, Mike Ferguson, Matt Goetz, Jim Groves, Tracy Hurley, Matt James, Jonathan H. Keith, Michael Kenway, Hal MacLean, Jason Nelson, Tork Shaw, Owen KC Stephens, Russ Taylor, and numerous RPG Superstar contributors