Baby Bottle Brush,Travel Bottle Cleaner Kit,Silicone Bottle Brush,Straw Cleaner Brush,Nipple Brush,Drying Rack-Baby Travel Essentials for Flying(Orange, Cylindrical)360 Swivel handle: The bottle brush is 8. 8 inches long with a swivel extension handle. First of all, you need to ensure that the brush and bottle are wet, and then tilt the bottle at a 45 Angle, insert the brush head into the bottle, turn the handle by hand, and maintain the inertial rotation, you can save a lot of energy, while deeply cleaning the bottle Food grade Silicone Bristles: Our baby bottle brush heads are made of food grade silicone, BPA