Imprint Method: SpectraCal™ - Set a new trend when you add this 20 oz. double wall insulated tumbler to your marketing plan! The stainless steel item keeps beverages cold for eight hours and hot for at least four hours. It features an attractive swirly pattern and the black unit is powder coated to prevent condensation on the outside. It comes with a clear, push-on lid with slide lock that helps prevent spills. Add your branding information to create a unique marketing tool. Provide an amazing incentive for clients to try your new coffee or tea flavor! Tornado.