Introducing the Katydid 40 Oz Insulated Stainless Steel Tumbler with Handle, designed for both style and utility. This plum-colored tumbler keeps your drinks at the perfect temperature with its double-wall insulation. Featuring a sturdy stainless steel interior and a convenient handle, it fits easily in most car cup holders. Closure is ensured with a screw-on plastic top, and it includes a reusable straw with an adjustable cover for easy travel. Care: Dishwasher safe. The tumbler measures 3" in diameter at the base.