This Christmas series 30oz in-vehicle insulated tumbler/mug with straw and handle is made of stainless steel. It has a leak-proof lid, a straw, and a handle, which is very convenient to carry and use. With air insulation technology, beverages can be kept warm for up to 6 hours or refrigerated for up to 16 hours. The production speed is very fast, it takes around 8-10 days for mass production & 6-8 days for shipping via Express and 20-25 days for shipping via Sea. Fits most car cup holders. BPA Free