Steering wheel knob for Plasto pedal tractor

My son imagined the steering wheel knob in his mind, while driving his Plasto tractor. So I got idea, to modeling and print real one, which is fit perfect to Plasto tractor. I printed all parts from PETG and 50% infill, only exception is the ”holder flatbar” which I print 100% infill. Only the ”frame” part need support.

I use M5x20 screws, but I think 4.8x15-20 wood screws will works fine also. You need those screws 3pcs. and one washer about 5x15mm.