Product Overview
The Spanner Wrench Tool has a spring loaded retractable center pin, which helps hold and align the flange nut for easier installation of the dorsiflexion assist joints. The spanner pins match up with four notches in the flange nut.
(https://www.beckerorthopedic.com/Product/AnkleComponents/ThermoplasticAnkleJoints/T-740-3)
