"Our Promise - We build every Stanley to last. Our Rugged, durable products have been handed down from generation to generation for over 90 years. As we build new products to meet your changing needs, we remain dedicated to this simple promise buy a Stanley and you will get a quality product, guaranteed for life". Key Features Unbreakable Char-vac barrier preserves the functionality of the product even after dropping. Double Wall the double walled insulation on both the jar and cup ensures a long lasting effect of either keeping food hot or cold. Easy Pour stopper, for easy pouring. Wide mouth opening, ensures you can easily clean the interior of the food jar. Will also allow ice cubes to be placed within the bottle. 100% Stainless steel construction, makes for a 100% rust proof product. Duration Hot - 26 hours Cold - 36 hours. Lifetime guarantee (25 Years in EU).