This is a stainless steel, powder-coated, double-wall insulated tumbler with an 18 oz. capacity (with lid on) that keeps drinks hot or cold up to 6 hours. It features a snap-on, spill-resistant thumb-slide lid, a non-slip bottom, and is BPA-free, meeting FDA requirements. It is available in multiple colors, including some made with recycled materials, and offers silk-screen or optional laser engraving and 4-color process imprint methods. Hand washing is recommended.