... stainless steel yongkang bottle 18/8, food-grade stainless steel Durable and won't break like glass Easily stackable stainless steel yongkang bottle 18/8, food-grade stainless ... single-use plastic. Made of 18/8, food-grade stainless steel, the 16oz Steel Pint Cup is durable, versatile, reusable, ... flask is made with recyclable, 18/8, food-grade stainless steel and doesn't need a special lining like ...