420ml LED Thermal Temperature Vacuum Flask Bottle

Smart Temperature Display
Built-in LED screen instantly shows real-time liquid temperature, eliminating guesswork for safety and convenience.
Premium 18/8 Stainless Steel
High-grade rust-proof inner and outer layers ensure durability and maintain liquid purity with no metallic aftertaste.
Advanced Vacuum Insulation
Double-wall vacuum technology keeps drinks hot for 12 hours or cold for 24 hours, ideal for commuting, travel, and outdoor adventures.
One-Touch Lid Operation
Leak-proof push-button design allows effortless单手开合，perfect for busy professionals, students, or gym use.
Sleek & Lightweight
Ergonomic 420ml compact size fits car cup holders and bags effortlessly, with a matte finish for scratch resistance.
BPA-Free & Eco-Conscious
Food-safe materials meet international standards, suitable for daily hydration with health in mind.
Multi-Scene Versatility
From office coffee breaks to hiking trips, this flask adapts seamlessly to work, travel, or fitness routines.
Global Wholesale Advantage
Direct factory pricing with bulk discounts ensures unbeatable value for resellers and bulk buyers worldwide.