Kitchen Innovations ZEAL Boil Over Safeguard - Silicone Lid Stops Pots and Pans from Messy Spill Overs - Reflecting Nature Proceeds to Save The Bees (Green) Prevents water from boiling over and prevents mess while boiling and cooking Stops pan boiling over when hot water boils up onto the ring, it cools and runs back down again Fits onto 6" to 10" (15-25cm) pans. BPA silicone. Dishwasher safe. 31cm diameter Approx diameter: 33cm / 12.5"