1. Packaging Content: The accessories include beads, bases, screws, gaskets, and plastic gaskets. This knob is suitable for various sizes of stew pot covers. It can also be used with a universal pot cover to make alternative stew pot covers 2. Durable material: The pot cover knobs and stainless steel screws are made of materials, fireproof, moisture proof, heat resistant. The knob is inlaid with copper inserts, and the service life will not be shortened due to the wear of multiple rotations 3. Elaborate design: The rounded edge is smooth but has friction. It is safer and more comfortable to use 4. Easy Installation: Just pass the attached screws through the gasket, saucepan lid, and knob base from below, and then rotate into the pot cover knob. The screws are difficult to loosen, so there is no need to worry about the lid falling off