800ml Capacity Stainless Steel Flask Portable Water Bottle

800ml Capacity Stainless Steel Flask Portable Water Bottle. Double-Walled Vacuum Insulation: Maintains hot beverages for 8 hours and cold drinks for 12 hours using vacuum structure. Food-Grade 304 Stainless Steel: Inner liner made of SS304, compliant with GB 4806.9-2023, corrosion-resistant and odour-free. Leak-Proof Seal Design: Features a secure seal to prevent spills; sealing ring recommended for replacement every 6-12 months. Customizable Color and Logo: Available in multiple colors including green, purple, pink, and black; logo printing is supported. Portable and Ergonomic: Cylindrical design fits car cup holders with anti-slip grooves for secure handling. Eco-Friendly Material: Constructed with safe, non-toxic materials suitable for daily use and travel. Fast Delivery for Ready Stock: Ready items can be finished and shipped within 7-10 days. Comprehensive After-Sales Support: 24-hour online support provided with prompt responses for design and manufacturing inquiries.