The Stainless steel double walled insulated cup by Southern Homewares is the ultimate solution to beverages on the go! This tumbler has double walled construction and includes a stainless steel screw top lid and a stainless steel straw which makes it perfect for keeping drinks As cold or hot as you want them to be. 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 cups and dealing with a mess to clean up -- this also makes it a great Cup for children to use, too! Classic brushed finish looks good in any environment, Whether youâre 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: 3. 60â | Bottom diameter: 2. 78â | Overall Dimensions: 4. 03â x 4. 03â x 8. 50â. Includes one tumbler.