The cover knobs are made of high quality plastic and stainless steel, which is rust, corrosion and high temperature resistant. It can be quickly installed and easily replaced. The lid knob contains complete accessories, just use a screwdriver to tighten it on the lid. A good kitchen tool, lids holder with glossy appearance, durable and unbreakable, convenient. Spare handle used to replace the pot handle, so as to prolong its service life. This lid replacement knob is versatile, beautiful and suitable for a variety of kitchen products, such as the lid of the pot, steamer lid, fryer lid, etc. You can install it anywhere. The lid knob is corrosion resistant. It is easy to wipe off oil stains on the spare cover knob with a damp cloth or rinse directly with water. Our pot lid knob is dishwasher safe which is wiped down with a damp cloth. Pack of 2 packs. Top diameter: 4cm; Bottom diameter: 5cm. With nails, easy to install. Plastic handle, stainless steel base, can be insulated well and will not burn your hands.