Trudeau Titan Travel Tumbler, Satin Finish 16-ounce travel tumbler by Trudeau Stainless steel exterior; double wall insulation keeps beverages hotter or colder, longer &#8220;Perfect Drink&#8221; lid; 360-degree drinkability; drink from anywhere around the rim Turn knob to open or seal; number, location and size of the holes provide an excellent liquid flow for a perfect &#8220;drink ability&#8221; Satin finish; non slip base; guaranteed leak-proof; 5 year warranty