Long Bottle Brush Cleaner for Washing Narrow Neck Beer, Wine, Kombucha, Decanter, Narrow Neck Brewing Bottles, Water Bottles, Flexible Bendable Brushes Household Cleaning Tools Price:  $6.99 (as of 29/03/2022 23:19 PST- Details)

16″ long bottle brush can easy reach the bottom and clean all inside area,
20mm 304 stainless steel wire and 5″ Long lasting flexible bristles, durable but bendable as to reach even the most difficult of inside crevices hard-to-reach places
Adding additional bristles at the very end of the brush to get a thorough cleaning of the bottles bottom