Price 70 gp; Weight 1 lb.
This 4-inch blade is attached via a hinge to a wooden handle with a slot in the center, into which the blade can be folded. With a click of a switch, a spring thrusts the blade outward, where it locks into place until it is reset. Releasing the blade is a free action, and resetting it is a move action. The handle must be in your hand for the blade to be released; placing it in your hand requires the same type of action as drawing a weapon. A spring blade is easy to conceal: an observer must succeed at a DC 20 Perception check to notice the blade hidden within the wooden handle, and you gain a +4 bonus on Sleight of Hand checks to conceal a spring blade on your body.
Pathfinder Roleplaying Game Ultimate Intrigue © 2016, Paizo Inc.; Authors: Jesse Benner, John Bennett, Logan Bonner, Robert Brookes, Jason Bulmahn, Ross Byers, Robert N. Emerson, Amanda Hamon Kunz, Steven Helt, Thurston Hillman, Tim Hitchcock, Mikko Kallio, Rob McCreary, Jason Nelson, Tom Phillips, Stephen Radney-MacFarland, Thomas M. Reid, Alexander Riggs, David N. Ross, David Schwartz, Mark Seifter, Linda Zayas-Palmer.