Adopt 304 stainless steel inner liner, food grade material, BPA free, safe and healthy, keep warm and cold, corrosion resistant. Sealed silicone ring, 360°sealed lid, fearless inversion, prevent leakage, carry more peace of mind. Easy to clean, with no residue, is the first choice for daily use at work, business trips, traveling, and outdoor family. Measuring 5.7*3.46 inches, this custom portable car insulated bottle 13oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: BPA-free, leak-proof, travel-friendly.