Tosnail 17 oz. Double Walled Stainless Steel Tumbler Insulated Travel Mug with Stainless Lid & Straw - for Hot/Cold Drinks (1) 17 Oz stainless steel tumbler with stainless steel lid & drinking Straw. 4" diameter in the top and 2.6" diameter in the bottom. Eco Friendly. Stainless travel tumbler is 100% BPA and lead free; Top rack dishwasher safe; Wash lid by hand; Not for freezer or microwave use. Large 17 oz. capacity. Perfect for coffee, iced tea, smoothies, flavored water and helps keep you hydrated throughout the day while on the go. Double Walled Construction means your drink will stay cooler longer than the competition. The lid screws on for a tight, leak proof seal.