Material: Heat-resistant bakelite + stainless steel Size: 6.4cm x 2.5cm Applicable aperture: 5mm-12mm Package list: 6 pieces * lid button, 6 pieces * screw, 6 pieces * matching washer High-quality Material: The high-quality material is durable, greatly improving the service life of the pan handle cover. The base is strong and stable. Easy to Use: The set contains 6 screws and 6 stainless steel washers. Simply attach the lid knob to the old pot lid and tighten the screws by hand. Clean the replacement lid buttons by wiping with a damp cloth or rinsing with water. This lid button is corrosion-resistant. Ergonomic Knobs: This pot lid cover knob with screws features an ergonomic design with a smooth, thick rim and no burrs, preventing sharp edges that could cut hands. The slightly rounded design allows for easy handling. The elegant and simple design provides effective functionality in your kitchen. All-match Design: This replacement lid knob has a safe, large handle that is easy to grip. The plastic handle helps prevent hand injuries. The thick, comfortable design fits well in hand and suits various pot styles and kitchen decors. The sleek black round shape complements different cookware. Applications: Replacement knobs for pan lids are suitable for various cookware, including kettles, oil pots, frying pans, pots, saucepans, pans, and casserole glass lids.