"Durable Star Knob: These star shaped knobs are made of plastic and brass, not only sturdy to use, but non-conductive and lightweight. Provides a comfortable grip. The surface is carefully polished, smooth and burr-free and won't hurt your palm when you hold it. 3 Sizes for Multiple Uses: 30pcs Star Shaped Female Threaded Brass Knobs Kit with Threaded Star Shaped Through Hole , including 3 sizes: M4, M6, M8.They are great accessories to replace your old or broken knob handles. Star-shaped design: Star-shaped knobs allow easy installation and disassembly, save time and hassle.Its brass inner thread greatly reduces compatible bolt slippage. Wide ApplicationThese star shaped knobs work well on the cabinets, drawers, doors, lockers, tool boxes, appliances and other me ules or equipment that require frequent adjustment. Perfectly adapts to your different applications. Widely used in all fields of industry and life, our star shaped knobs will be a nice selection for you. Easy to Use: Screw construction, easy to install, just line up the internal thread with the screw and twist vigorously. They are great accessories and can replace old or damaged knob handles."