High Quality MaterialsAll the brushes are made from silicone material which are certified by FDA & baby food from 100% BPA Free food grade silicone bottle brush, free of pollution, absolute environmental protection . Better Brush For You Our silicone bottle brush cleaner brush repels unpleasant odors, stains, - unlike sponge and nylon brushes - preventing nasty stains build-up which is more healthier for your family. You will no longer worry about the smelly sponge bristles, it may replace all bottle brush in your home . Multipurpose Cleaning ToolsSilicone bottle cleaning brush is designed to reach down into every corner of the bottles to properly clean them by removing residue. Use the silicone brush to keep your dishes, bottles, sports bottles, baby bottles, infusers, flasks, thermoses, tubes, breast pumps, kitchen appliances and more, sanitary clean.but won't fit in beer/wine bottles. Grime Free & Scratch SafeThe soft, flexible silicone bristles of our water bottle cleaning brush are tough on gunk, yet gentle enough to leave your favorite vase, glass water bottle, pitcher, blender and glassware clean and scratch-free . Durable and PracticalThe bristles of the rugged bottle brushes always keep their shape, and will not break off or fall apart. It can even be used for hot cleaning (up to 450F/230C), and also Dishwasher & Microwave Safe .