This item was found while cleaning out my parents' house. It hasn't been used much, but please understand that it has been stored for a long time. I think it's rare because I haven't seen this item anywhere else. It's a thick dish that can be used for various dishes besides gratin. Diameter: 20.6 x 16.2 cm, Height: 4.4 cm. Shipping costs will be discounted for combined purchases. *Please refrain from purchasing if you are overly sensitive to used items. Please be sure to read my profile.