Handmade Slide Bar Bottleneck

【Set of 2】
Handmade slide bar and bottleneck, crafted from wine bottles.
Why not get this set of two?

Size:
Inner diameter (narrow): φ18.5mm
Inner diameter (wide): φ22.0mm
Total length: 66mm for both. Conical shape.
*Please allow for slight measurement errors.
*The wide inner diameter may vary slightly depending on the total length.

In my opinion, these have more thickness and weight than commercially available products, producing a longer, cleaner vibrato and beautiful sound.

These are handmade. There may be minor chips.
They have been rounded with files and sandpaper.
No claims or returns, please.

Thank you for looking.