Tailfin bottle dropper

If you have access to the wolftooth b rad, you're better off buying that. They're cheaper, come in various sizes (3), and are made just as well. I like tailfin products but they legit copied this and made it more expensive without innovating the concept at all.

I’ve bought the cheapest one on amazon (a couple £) to lower the bottle to fit bigger frame bag. Works just fine.

Check out King Cage. I think they're the O.G. cage lowerer (although I think they do whole cages).

https://a.aliexpress.(com)/_opKvk1I

Same chunks of aluminum.

Spend saved money on boose, women, and non-destructive charity.

That's frame dependent and bottle cage aren't the same. You have to try or give more information or at least a picture.