Silver Diamond Crusted Vacuum Flask Gift Set 500ml with Temperature Display. Smart Temperature Display: Real-time temperature reading via smart touch screen for beverage monitoring. Luxury Diamond Design: Diamond-shaped crystal body with silver finish for premium aesthetic appeal. Double Wall Insulation: Stainless steel vacuum insulation keeps drinks hot or cold for extended periods. Built-in Tea Strainer: Independent tea filter partition allows for versatile use with loose leaf tea. Full Customization: Custom logo engraving, color options, and personalized gift box design available. Eco-Friendly Material: Crafted from food-grade stainless steel, BPA free, and easy to clean. Exquisite Gift Packaging: Comes in an elegant gift box, ideal for corporate gifts and high-end events. Multiple Certifications: Certified by CE/EU, CIQ, FDA, LFGB, and SGS for safety and quality assurance.