About this 3D model

This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/1LUssAHV5tS 5mm bolt, 8mm nuts, washer printed to fit. I used it on 19mm plastic tubing to fit a metaldetector circuit on it. Weekend project with my son. SChematics attached... the tubing is that yellow tubing used for wiring a house. can also be used on bikes and the like. You can also alter the design, be my guest ;)