Exceptional Heat Resistance: These lid knobs are designed to withstand temperatures up to 260°C (500°F), making them ideal for use on glass lids when frying or baking. Perfect for easily updating your cookware. Innovative Pressure Relief Design: Featuring a special design that promotes continuous pressure relief, these lid knobs enhance cooking by preventing overboiling and ensuring precise temperature control – crucial for optimal cooking results. High-Quality Materials and Durability: Made from premium bakelite with stainless steel screws, these knobs are not only heat-resistant but also robust and durable. Their non-slip surface provides a secure and comfortable grip. Easy Cleaning and Installation: These lid handles are extremely easy to clean and are dishwasher safe. Installation is simple with the included rubber and metal washers, ensuring a strong and durable attachment without the need for special tools. Wide Compatibility and Ergonomic Design: The universal design of these knobs makes them compatible with a variety of lids, whether metal or glass. Their ergonomic shape ensures easy handling and reduces fatigue when using heavy lids.