Come and Check Our Branding Solutions.The wine cup are made of 304 stainless steel,more durable than other ordinary glasses,And they are not easy to be broken,the double insulated technology is good for keeping your drinks warm or cold for a longer time,so you can use it in any season.the lid is designed with a straw hole for cup on the surface,which is good for easy sipping with straws and helping reduce splash. Pls check inventory and detailed info before placing your orders.