Stainless Steel 18650 Battery Tubes?

[iCloud]

Does anyone know where I could purchase any stainless steel 18650 battery tubes that look like the ones in this photo please?

 

[RicModMaker]

I should have them this week

 

[iCloud]

That's great thanks

 

[dean0]

Does anyone know where I could purchase any stainless steel 18650 battery tubes that look like the ones in this photo please?

View attachment 61492

Looks interesting can this be used as a mech?