Product Overview
The Ratchet Lock™ is designed to promote full knee extension by providing knee stability to the user through an incremental range of knee flexion. The joint features a secure, semi-automatic locking mechanism that can be quickly and easily disengaged. The lock may also be completely disengaged to facilitate sitting until the user decides to re-engage the locking mechanism.
(https://www.beckerorthopedic.com/Product/KneeJoints/1000KneeSeries/1014)
