Soda bottle funnel (20.5mm)

I made a desiccate holder from an old soda bottle by drilling holes in the bottle. I needed an easy way to fill the bottle with new desiccate, so here it is. You could also use this to put liquids in the bottle too.
Here is a link to the desiccate I use:
https://www.amazon.com/gp/product/B000OUXA2Q/ref=as_li_ss_tl?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01&linkCode=sl1&tag=shawbarrphot-20&linkId=8fb338bc0ee7d123b8ef340bcf7d97da
P.S. Coke Zero is really good. ;)