Customized Tumblers & Travel Mugs, Oasis 20 oz Stainless Steel Polypropylene Tumbler - 3-Hour Insulation, Stainless steel outer shell with black polypropylene inner lining Clear plastic push-on lid with sliding drink opening Keeps beverages hot or cold for up to 3 hours Non-skid base - Cup holder friendly Hand wash only BPA Free and FDA certified ... #DTM-OA18 $6.62/each.