?【ADJUSTABLE HANDLE】The handle of our cup brush is adjustable, from 25 to 33cm, suitable for bottles of different lengths. When cleaning shallow bottles, it can be adjusted to be shorter, which saves effort; when cleaning deeper bottles, it can be adjusted to be longer to clean bottom stains. ?【SOFT AND STRONG CLEANING SPONGE】The long handle water bottle brush uses a super soft sponge, which will not scratch the cup. And the sponge is super absorbent, has faster water discharge, and can effectively clean tea stains, coffee stains, and other difficult-to-clean stains. ?【SAVE MONEY AND STORAGE SPACE】Using the right tools can make your cleaning easier and save much time. Instead of having multiple cup brushes of different lengths, it is better to have one cup bottle brush cleaner that can be adjusted in length, which saves money and storage space. ?【HOW TO ADJUST THE LENGTH】Unscrew the thread, pull out the cup brush, align the arrow in the direction of the sawtooth, and then tighten the thread, which is simple and convenient. The handle has a non-slip texture and a hole for easy hanging. Removable design, easy to clean. ?【MULTI-FUNCTION】Our sponge bottle brush is suitable for different kinds of cups, such as sports bottles, water bottles, thermos bottles, goblets, glasses, milk bottles, mugs, and other cups that are not easy to clean. It can also be used to clean the sink.