Premium 500ml Stainless Steel Vacuum Flask Set
High-grade 18/8 stainless steel construction ensures durability and rust resistance for long-term use. Triple-layer vacuum insulation technology maintains beverages hot (12+ hours) or cold (24+ hours) with optimal temperature retention. Includes 3 versatile lids: leak-proof sip lid, classic screw lid, and wide-mouth lid for diverse drinking preferences. Bullet-shape ergonomic design fits most car cup holders and backpacks for on-the-go convenience. Elegant gift box packaging ideal for corporate gifts, outdoor adventures, or daily office use. Mirror-polished finish and laser-engraved branding options available for bulk customization. Wholesale-friendly pricing with MOQ discounts. Ships globally with OEM/ODM support for large-volume buyers.