Our mugs are made of premium food-grade stainless steel with BPA-free plastic lids, unbreakable and reusable. Vacuum-insulated double wall keeps drinks hot or cold for hours, Ideal for water, juice, milk, smoothies, and hot chocolate, perfect for kids, toddlers, cafes, restaurants, self-service areas, parties, homes, events, patios, poolside, picnics, and other outdoor uses. Custom your color match and create your own coffee tumbler. More information, please send your detailed request for quotation. Measuring 12oz, this custom double-layer 12oz stainless steel u-shaped insulated tumbler with lid. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: BPA-free, leak-proof, travel-friendly.