Keep Drinks Hot or Cold: stemmed wine tumbler uses double wall vacuum insulation design, which can keep drinks cooler in summer and warmer in winter, keep them longer, so our stainless steel metal insulated wine tumbler with lid is perfect outdoor and home use More Safety: unbreakable stainless steel wine glasses use quality stainless steel, shatterproof, drop , dishwasher safe, reusable, easier to carry and transport than traditional glasses; Secondly, the equipped lid can effectively avoid dust and prevent spills Convenience and : wide opening and smooth round shape are very easy to clean, stainless steel material is easy to carry anywhere, stemware is easy to grab; Classic shape with smooth and beautiful colors make your party more grace