DISCLAIMER:
I am not responsible for any damages done to you or your bike. I had this original piece fall off and I could still ride my motorcycle just fine without it! It only bothered me that the handle was short and didn't have a bump at the end to prevent hand from slipping off.
This is a replacement part for the handle piece of the length-adjustable motorcycle lever which can be found in many online store.
I had my metal handle fall out while riding due to them not putting any thread lock on, and after searching the road up and down I couldn't find it.
I have been using the printed version for more than two years now with only one reprint (had it in black color and the sun made it bend a bit due to high heats, but the second white version in PET seems to be holding up just fine. Plus I always keep a spare set under my seat with the appropriate bolt.
This model is here to help anyone that had their piece fall off so they don't have to design it themselves.
I recommend printing it in PET or ASA.
The author hasn't provided the model origin yet.