MULTIPLE SIZES: Length (9.0 inches)*Dia(10mm), Set of 100 Nylon Brushes. Great for clean your straws on Tumbler, Sippy Cup, Baby Bottles, Tervis, Yeti, Starbucks Cup and others. EASY TO USE – Simply insert it into the pipe, rotate it, remove and wash it. With the long, soft but durable bristles. DURABILITY & MULTIFUNCTIONAL – Use our durable straw brush that is very flexible but will not break easily which is much stronger than some inferior and fragile straw brushes. Meanwhile, this brush also can be used to clean Pipe, Narrow Tube, Coffee Pot, Sink Drain, Hummingbird Feeder APPROPRIATE HARDNESS: The brushes come with a detachable key ring and appropriate hardness. So every brush can be taken out easily, Not only prevent scratching the items, but also protect you from hurting yourself when cleaning DISHWASHER SAFE – These pipe cleaners are easy to clean after use since they can easily throw it in the top rack of the dishwasher, and this won't affect the brushes' effectiveness and functionality. WHAT YOU WILL GET: 100 pack metal straws cleaning brush Specification: Metarial: Top food-grade 18/10 stainless steel Length: 9.0" Outer Diameter: 10mm Care Instructions: Wash before use in hot water with liquid detergent,rinse and dry with a soft cloth Dishwasher safe,remove it immediately after the washing cycle finished and wipe excess moisture with a cloth