Dead angle cleaning: The brush set includes 4 brushes. Four different brushes for different types and sizes of bottles. Sturdy and flexible: flexible neck for easy cleaning in the bottom of bottles. The brushes can be bent freely, you can always find a fit tool when cleaning gaps, dead corners. Product size: The four brushes are available in four lengths: 25cm, 33.5cm , 37cm, 37.5cm. Weight: 102g. Material: plastic Easy to clean and store: You can clean it in the dishwasher. And they are easier to dry and easily stored in a kitchen cupboard or hung on a hook. Good cleaning helper: Each unique size and shape makes it easy to clean hard-to-reach places, such as teapots, wine carafes, coffee filters, pitchers, flasks, cups, tumblers, feeders, flower vases, kettle, straw, teapot and much more.