Features: High-quality material: The shell is made of high-quality material, not easy to break, sealed and leak-proof, can be used for a long time, and durable. Easy to Use: Simply freezing the ice box, insert it into the air cooler, and enjoy extended cooling without the hassle of constantly replacing ice. Energy Efficient: Our ice box reduces the need for continuous power consumption, making your air cooler more energy-efficient and environmentally friendly. WIDELY USE: Conveniently fits into all types of lunch bags, lunch boxes, coolers and grocery tote. Ideal for use in tight spaces or for stacking multiple together for greater cooling capacity. Applicable to multiple scenarios: it can be used for air-conditioning fan refrigeration, fruit and vegetable preservation, self-driving camping, outdoor fishing, medicine refrigeration, etc. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: PE shell Size: As shown Package List: 1 x Cooler Ice Pack