Two styles at random: These pot lid covers come in two different styles due to batch differences and will be sent at random. Please note this before . Prevents boilovers and reduces condensation: The builtin steam release vent lets excess steam escape, which lowers condensation on the underside of the lid and helps prevent messy boilovers while cooking. Clear monitoring without lifting the lid: The inlaid heatresistant tempered glass provides a transparent view of the food, so you can check progress without releasing heat or steam. Safe, comfortable handling: The Bakelite knob is durable, heatresistant and comfortable to hold, reducing the risk of burns when moving the lid. Durable materials and reliable performance: Tempered glass and a Bakelite knob are chosen for heat resistance and longevity, offering consistent performance during everyday cooking. Practical uses Simmering sauces and stews: Keep a close watch on consistency without lifting the lid and losing heat. Boiling pasta or potatoes: Use the vent to prevent sudden boilovers and reduce cleanup. Rice, grains or steaming vegetables: Maintain stable cooking conditions while minimizing condensation dripping back into the pot. Note: This product is a pot lid cover with the functions and materials described above. Two styles are available and will be sent at random. Please consider this before ordering.