Southern Homewares brings the ultimate in beverage on the go solutions, The stainless steel double walled insulated cup! This tumbler comes with a stainless steel screw top lid and stainless steel straw making it the ultimate drink companion. The threads on the inside of the lid are plastic and utilize a rubber gasket to ensure a nice tight spill resistant seal. No more knocking over your drink and having a huge mess to clean up, making this an excellent children's cup as well. Since it features double walled construction this means warm drinks stay warm and cold drinks stay cold. Classic brushed finish looks good in an surrounding be it at the pool, on the golf course, hanging out on the beach, or simply lounging around the house. It also features a no slip bottom for further stability. Holds 20 us fluid ounces. Top diameter is 3. 60". Bottom diameter is 2. 78". Overall dimensions are 4. 03" X 4. 03" X 8. 50". Includes two tumblers.