Each Shine Stainless Steel Bottle Brush Set comes with 1 complete bottle brush, plus 1 replacement twist on/off brush head! When you need additional replacement brush heads, you just purchase them separately which is less wasteful than replacing traditional plastic brushes. Durable and sturdy nylon bristles are tough on dirt, yet gentle on babys bottles! Hard to reach corners are no match for the flexible brush neck, which bends and moves to get into every bottle with ease. Suction cup base allows you to simply pop it onto the countertop to keep it upright and away from germs. Soft rubber nipple brush is conveniently stored inside the handle for cleaning bottle nipples, pump parts, valves and other small bottle accessories. A brush with brawn and beauty guaranteed to "steel" your heart!