Circulon Total 5-1/2-Quart Casserole with Locking Colander Lid Lab tests prove its #1 for durability and food release, outlasting all other nonsticks - guaranteed Heavy gauge hard-anodized for outstanding durability and even heating - no hot spots that burn foods Advanced nonstick exterior for easy cleaning Ergonomically designed stay cool phenolic handles are slip-free and oven safe to 350F Lifetime Customer Satisfaction - Guaranteed!