This 30oz double walled, insulated tumbler features a tapered bottom to fit cup holders. The spill proof, twist closure lid includes a handle for handy use as well as a flip top straw for easy sip. Dimensions: 9.75" H x 3.50" DIA (top), 3.00" DIA (bottom). Materials: 18/8 Stainless Steel (inside), Copper (insulation), Powder Coating (outside), ABS & Rubber (lid).