Yamaha Fuel Wrench

I have a Yamaha FZR1000 and the petcock has a square shape plastic knob. You pretty much need a set of pliers to turn it. Problem is, the bike I got had this knob broken off. I had to replace the petcock and decided a plastic wrench would help me operate it without damaging it.

I've found this fits many Yamaha models from 1986 - 1995. See this for all the models:
https://www.partzilla.com/product/yamaha/26H-24500-00-00?ref=52062049ac48159de034db1f04c28109371c5de0

NOTE: I've revised this with a larger, thicker handle, which seems to work a lot better than the original design.