Flexible, soft, lightweight, reusable, long enough to clean the dust, dirt on the bottom of the glass. The brush is made of quality foam, which is flexible and firm to use, the cleaning beads are made of stainless steel, comes uniform friction with the inner wall of the container without damaging your glassware, safe and reusable for long time The cleaning brush are long and flexible enough to clean the dust and dirt on the bottom of glass; Pour the cleaning beads into the container to be cleaned, add right amount of water, and then gently rotate to remove hard-to-reach stains, sediment and coffee stains, thoroughly cleans the tricky corners of the bottle Good household cleaning tools to remove internal stains, dirt, dust and residues on narrow neck goblets, water bottles, glasses, cups, stemware, coffee pots and carafes, can take only a few minutes to achieve a clean and shiny effect Multi-function Household Cleaning Tools Flexible Wine Glass Cleaning Brush Tumblers Long Handle Sponge Cleaning Brush,very convenient