**Product Specifications:**

**Brand:** GOLDEN KEY

**Product Type:** Insulated Lunch Bags and Lunch Box

**Models:** Blue Handheld Insulated Bag, Red Handheld Insulated Bag, Magic Anti-overflow Vacuum Lunch Box

**Features:**

- Vacuum insulation for heat preservation and freshness

- Stainless steel construction (304 grade)

- Tailless vacuum design for enhanced insulation

- Food grid upgrade for better food separation and preservation

- Independent compartments for separating and preserving food flavors

- Four-layer insulation structure for superior heat retention

- Temperature retention test results: 98°C+ after 0 hours, 75°C+ after 6 hours, 55°C+ after 12 hours

**Testing Standards:** Complies with Q/JYS1-2020 standards

**Capacity Options:** 1.7L, 2.3L, 4.0L, 5.0L, 7.0L, 9.0L, 12.0L

**Material:** 304 Stainless Steel

**Color:** Champagne Gold

**Model Numbers:** GK-MF1700T, GK-MF2000T, GK-MF2300T

**Additional Features:**

- Thickened insulation strap and cutlery set for convenient carrying

- Oxford cloth exterior for durability and scratch resistance

- Thickened aluminum foil lining for extended insulation

- Soup line indicator for safe filling level

- Pressure relief valve for easy opening

- Non-slip silicone base for stability

*Note: Product specifications are manually measured and may have a 5mm deviation. Testing results are indicative and may vary based on environmental factors.*