Thermal bottle with AISI-304 stainless steel interior, commonly used in the food industry. Highly durable and long-lasting, ensuring consistent performance over time. The exterior is made of AISI-201 stainless steel, which is lighter but has similar properties. The two layers of steel are separated by an air chamber that guarantees total insulation without dissipating the temperature of the liquid inside. Keeps hot beverages at an ideal temperature for 20 hours and cold beverages for 10 hours. Volume: 500 ml. Materials: Stainless steel. Cold storage duration: 10 h. Hot storage duration: 20 h. Cap type: Screw cap. Hermetic. Double wall. Contains no Bisphenol A (BPA). Height: 270 mm. Diameter: 7 cm.