Material: Bakelite Color: Black Durable Style Round Shape Number of Pieces: 4 Dishwasher Safe: Yes Microwave Safe: No About this item High Quality Material: The pot lid knobs are made of bakelite, a heat-resistant and durable material. The knob features a stainless steel screw that does not rust. This combination ensures long-lasting performance and stability. The base is strong and securely constructed for reliable use. Easy to Clean and Install: These pot lid knobs are simple to install using the included retention screw. Just place the knob, rubber gasket, and metal gasket, then screw securely. They are easy to maintain and can be cleaned with a damp cloth. Dishwasher safe for convenient cleaning. Ideal for replacing old or damaged knobs. Ergonomic Design: Designed for comfort and ease of use, these knobs have a smooth, thick rim with no sharp edges or burrs. The slightly rounded shape allows for a comfortable grip and easy handling. The ergonomic shape ensures safe and secure operation when removing or adjusting lids. Universal Fit and Stylish Appearance: These black round knobs are designed to fit a wide range of lids and complement various cookware styles. The sturdy construction provides a secure grip, while the heat-resistant bakelite helps protect hands. The sleek, minimalist design blends well in any kitchen. Applications: Suitable for various types of pots and lids, including cooking pots, saucepans, frying pans, oil pots, glass lids, and slow cookers. This set includes 4 knobs, offering versatile replacements for multiple kitchenware items.