NOTE:As per customer feedback, we have upgraded our longest brush by making it bendable and easily straightening!EFFICIENT CLEANING - Our silicone bottle cleaning brushes that come in 3 pieces( Small 9.5x 1- Medium 12.5x 1.4, Large 15x 1.4) that can be used to clean different bottle shapes and sizes and will give you the ease of cleaning all the difficult to reach areas in narrow neck containers(NOTE:the heads size of L & M are the same,only handle lengths differ) PREMIUM & SAFE MATERIAL LEMOZO Bottle Brush Cleaners are made of 100 % Food-grade silicone, dishwasher safe and heat-resistant up to 450F (230C). Our silicone water bottle brush repels unpleasant odors and stains - unlike sponge ,straw bristle brushes. SMART DESIGN - The narrow bottle brushes feature in long handle, non-slip grip, soft silicone bristles which will effectively and easily clean all the corners, nooks and crannies of your bottles and containers without leaving any residue or scratches on the surfaces. MULTI-PURPOSE CLEANING TOOLS -You can use our silicone bottle cleaning brushes set for narrow bottles, baby bottles, gallon water bottles, manna water bottle,vase, mug,glassware or even dish. Silicone brushes are way more efficient and durable cleaning tools than sponge, plastic or straw brushes.(Not fit beer bottle)