Amp gain tool?

[8v fury 90]

I saw on a video awhile ago about someone makes and sells and 3d printed amp gain tool (looked like a screwdriver). I can't find the video it was in and I have tried google with no luck. Does anyone know where I can find one and buy one. 

[bmwking 381 2 Vehicles]

https://www.facebook.com/bass.head.accessories/app/251458316228/

[8v fury 90]

15 minutes ago, bmwking said:

https://www.facebook.com/bass.head.accessories/app/251458316228/

Thank you for the link, I just ordered one.

[BassMunky 82]

lol

[Kyblack76 12491]

Jesus. People buy the oddest shit