Geco 28 oz Stainless Steel Tumbler is made of 18/8 stainless steel construction with a powder-coated matte finish. Interior is copper-lined and double-wall insulated. Comes with a clear plastic push-on lid withsliding drink opening that can keep your beverages hot for up to 4 hours and cold for up to 12 hours Tumbler shape is compatible with most car and truck cup holders. Recommended hand wash only. Must be ordered in exact case quantities and may ship from CA. BPA Free and FDA certified.