Smooth surface, it is easy to clean the dirty stains and keep clean after use. Easy to install on different kinds of home microwaves. Not easy to be broken and heat resistant comptiable with microwave use. It is durable, which is difficult to be broken so you neednt worry about the security of this glass plate. It is made of high quality glass material, which is safe and durable comptiable with a long time use. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks comptiable with your cooperation and we'll make you feel satisfied.