True uploaded a series of videos to YouTube with Scott Van Horne showing off the skates and adjustment techniques, etc and showed how the tendon guard is affixed with a copper rivet, how to remove and replace the tendon guard if necessary.
We got a brand new pediatric airway sim - a "syndaver" or synthetic cadaver - at medic school, and it is ABSOLUTELY REPULSIVE and the stuff of nightmares but it's also amazing and the most realistic mannikin I've ever seen. (airway just means it's the head and shoulders/upper torso). It has tastebuds for pete's sake. It smells weird. I love it.