Material Stainless SteelCapacity 300 millilitersNumber of Items 4About this item Stainless Steel: This wine tumbler set of 4 is made of the premium 304 food grade stainless steel, very strong and high purity, durable, long lasting, anti-rust as well as lead-free, no worries to use. Optimal insulation performance : Our double wall and vacuum insulated stainless steel wine tumbler with lid can keep hot coffee over 3 hours and cold drinks over 9 hours, can be used in any season. UNIQUE LID: This stainless steel wine tumbler has a lid that keeps the temperature. The lid features a new leak-proof push-on lid that minimizes liquid spills, made of food-grade material very safe and eco-friendly 4 reusable straws and 4 straw brushes, convenient to use and easy to clean, which reduce disposable tableware to protect our environment. Perfect Gift and Easy DIY : 12oz stainless steel drinking cup with lid is perfect gifts for Valentine's Day, Mother's Day, Thanksgiving Day, Christmas Day, Birthday etc. You can add a personalized design according to your own preferences, it is very suitable for stickers, logos or writing.Wide Application: This wine mug gift set with 12oz capacity is easy to hold and carry ideal for coffee, wine, tea, cocktails, champagne, beer and more, very suitable for home, office and outdoor use. If any questions you can at any time. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.