Lower leg fixation

For a Van Raam bicycle with three wheels (Mini, Midi, Maxi, Maxi Comfort, Easy Rider, Easy Rider Junior, Easy Sport, Viktor, Viktoria, Fun2Go and FunTrain) is it possible to order a lower leg fixation. The lower leg fixation prevents the lower leg to fall to the left or right. During ordering, you need to select left or right side.
There will be a small brace where you need to place your lower leg against for support. With tape you can fix the lower leg. The lower leg fixation can only be ordered together with the foot fixation.

onderbeenfixatie fiets van Raam