The 10.75" dinner plate is made of fine Czech porcelain and matches our restaurant weight line of dinnerware. Our line of restaurant weight porcelain dinnerware is reinforced under the rim to make each piece stronger and more durable. The unique feature of our restaurant weight line is that the thicker band of porcelain which reinforces the piece is hidden under the rim in order to keep the place setting from looking clunky. Made in the Czech Republic. Microwavable and dishwasher safe.