Enjoy a 360-degree clean with the Scotch-Brite Sisal Bristle Bottle Brush Head Replacement. This replacement head extends the life of Scotch-Brite Greener Clean Bottle Brush and is made with 100% natural plant-based bristles. To replace the bottle brush head, untwist it near where the bristles and handle connect. Simply remove and discard. Twist on new bottle brush head to extend the life of the handle. Refillable packaging solutions made from 100% recycled content help your bottle brush go further.