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What is a Stainless Steel Vacuum Flask?

A vacuum flask is an insulated container designed to keep liquids hot or cold for extended hours. It uses double-wall stainless steel with a vacuum in between, minimizing heat transfer.

✅ Key Features:

• Material: Durable, food-grade stainless steel

• Insulation: Double-wall vacuum insulation retains temperature for 12 to 24 hours

• Leak-proof: Most models come with tight lids or flip caps to prevent spills

• Capacities: Common sizes range from 500 ml to 1 liter

• Designs: Available in sleek, stylish options—ideal for school, office, travel, or gym

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Double Wall Stainless Steel Vacuum Flask Set Steel Vacuum Flask Set with 3 Steel Cups Combo-Keeps HOT/Cold-Ideal Gift Steel Vacuum Flask Set with 3 Steel Cups Combo - 500ml with Gift Box.