28 cm. Metal utensil safe nonstick. PFOA free. 400 degrees F (205 degrees C) - Oven safe. Lifetime guarantee. X-Tra release - durable, easy-to-clean granite sear and release nonstick interior. X-Tra healthy - use less oil with PFOA free nonstick interior. X-Tra performance - thick, even heat base for superior cooking. Tempered glass lid with handle. Riveted, oven safe handle for durable and secure grip. Durable 3 layer, metal utensil safe nonstick interior for easy cleaning. Thick, even heat aluminum for superior cooking. Durable silicone polyester exterior finish. www.bialetti.com. Made in China.