3DKnee e+ Tibial Insert - HXLPE-VE, Sterile, Material: Highly cross linked vitamin E PE, Sz 2/9mm. || The insert is intended to more closely match the kinematics of the knee, allowing some rotation along the medial condyle and increased congruency along lateral condyle. This insert is to be used along with the other components that comprise the 3DKnee System.