The Cleaning Brush is a high-tech cleansing tool with a super strong cleaning effect. It will not scratch objects and makes them look as new again. It can be used on gas ovens, pressure cookers, teapots, kitchen knives, steel and stainless steel. Directions: Cut about ¼ inches of the covering off of one side. Wet the end and scrub on surface. You can use cleaning powder that is safe for your surface for faster cleaning. Caution: Use with care. It is best to wear gloves to protect your hands.