All knee joints are shipped fully assembled. The joints are free of play, self-lubricating, dirt resistant and available in at least 6 sizes per model. Modular extension assist options can be added or changed at any time.
Free Knee Joints
Knee Extension Assist for Liber
Free motion knee joints
Free motion knee joints with dampened extension stops (Strecker)
Locked Knee Joints
Extension assist-S for Konso
Extension assist-N for Konso
Adjustable Knee Joints
Pre-Select Knee Lock