Introducing The Stanley Reverb Tumbler In A Sleek Black Color. This Three-Piece Set Is Made Of Insulated Stainless Steel To Keep Your Hot Or Cold Beverages At The Perfect Temperature For Up To 8 And 12 Hours Respectively. Perfect For Adults Who Are Always On The Go, This 30oz Tumbler Is A Must-Have For Any Kitchen Or Outdoor Adventure. The Violet Character Of This Tumbler Adds A Pop Of Color To Your Collection. With Its Vacuum Flask And Mug Design, It Is Perfect For Storing And Organizing Your Beverages. This Just Released Item From Stanley Has All The Features Of A High-Quality Insulated Tumbler Without Compromising On Style.