Magic Copper cleaning balls – Norfolk Natural Living
Eisch Glas Wine Decanter Cleaning Balls, Glassware; UK Glassware Suppliers - Wineware.co.uk
Magic Copper Balls For Cleaning Vases and Decanters – The Oxford Brush Company
These are the best for cleaning bongs and rigs! My glass gets clean with a few swishes. : r/StonerEngineering
Cleaning Beads for Glass Vessels Deluxe cleaning beads for glass carafes, bottles, vases, decanters and more made of stainless steel with storage box : Amazon.co.uk: Home & Kitchen
Eisch Glas Wine Decanter Cleaning Balls, Glassware; UK Glassware Suppliers - Wineware.co.uk