Stainless Steel 20 Oz. Tumbler &ndash; Premium Double Wall Vacuum Insulated - Keeps Ice Frozen for DAYS! - Colder Than Competitors even YETI! Because of Food Grade 18/8 Stainless Steel - 20 Oz & Lid 48-hour Temperature Retention GUARANTEE!!: Purchase with confidence! If you aren't completely satisfied with your Mega highest quality Food Grade stainless steel, vacuum insulated, double walled tumbler it can be returned for a no question asked FULL REFUND Food Grade Stainless Steel Double Wall Vacuum Insulated Drink Cooler and Thermos guaranteed to keep drinks cold or hot longer than competitor products. We are the first manufactured unit specializing in both COLD and HEAT retention products that utilize only the finest Food Grade Stainless steel for manufacturing. The proprietary design of thermal barrier technology provides unmatched insulation for unbelievable temperature retention. The 100% Cold Sweat, thermal transfer design means you never need to worry about coasters under your drinks, leaving wet rings on counter tops, wood furniture or burning yourself with your favorite hot drinks! Unit includes One Food Grade Stainless Steel double wall Vacuum insulated Tumbler, One Clear Shatterproof BPA FREE Acrylic Top, and one spill proof plug for on the go use of your product.