Rounded cup mouth, smooth and convenient water, easy and convenient to clean. Cup body matte process, better performance of color warmth and texture, effective rust prevention, more texture. Built-in sealing silicone ring, 360-degree leakage prevention. Long-lasting heat preservation is a unique technology for both warm and cold. The copper-plated inner liner forms an effective heat insulation network for heat preservation. The cup core is made of 316 stainless steel liner material, a temperature-resistant material, that effectively prevents temperature loss, is easy to clean the surface of the liner, easy to remove dirt, is safe and healthy, and heat preservation lock cold. Measuring 2.8*7.9 inches, this custom creative mushroom stainless steel insulated bottle 12oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: BPA-free, leak-proof, travel-friendly.