This pressure relief lunch box is made of high-quality aluminum, which is heat-resistant and conducts heat quickly. The box body is thickened to resist wear and corrosion, making it durable. The four-point round hole design effectively prevents excessive steam and pressure buildup. The silicone anti-scald handle is easy to open and convenient to carry. Features: Made of high-quality aluminum, heat-resistant, and conducts heat quickly for more efficient cooking. Thickened box body design, wear-resistant and corrosion-resistant, longer service life. Four-point round hole design effectively prevents excessive steam, ensuring food taste. Silicone anti-scald handle, non-slip and easy to grip, safer to use. Portable design, suitable for outdoor cooking, meeting various cooking needs. Specifications: Small Pressure Relief Lunch Box Material: Oxidized Aluminum Capacity: 0.65L Size: 17.3x9.5x6.5cm/6.8x3.7x2.6in (box body) 12.2x3cm/4.8x1.2in (handle) Weight: 272g/0.6lb Large Pressure Relief Lunch Box Material: Oxidized Aluminum Capacity: 1.3L Size: 20.5x13.5x7.5cm/8.1x5.3x3in (box body) 14x4.8cm/5.5x1.9in (handle) Weight: 425g/0.9lb Package List: 1x Pressure Relief Lunch Box