Hydraulic Monocentric Knee Joint, Alloyed Aluminium
https://www.atpsupply.org/shop/pr04-hd-k04-hydraulic-monocentric-knee-joint-alloyed-aluminium-3889
https://www.atpsupply.org/web/image/product.template/3889/image_1920?unique=6021db9
Flexion angle: 145°
Mobility: 3