40L large capacity: cooler box: 13.78x 11.02x15.75 inch (35x28x40cm), maximum capacity 40L, large enough to hold 60x 330ml cans. There are mesh side pocket on the front and both sides for storing outdoor equipment. Ideal for picnics, camping, etc. High-Quality Insulation: 4-layer Insulation Design and cold for 20 hours + warm for 6 hous. The outer layer is 300D oxford material. The second layer is 10MM extra thick, EPE material with excellent heat and cold insulation.The third layer is thick high-quality non-woven fabric and the fourth layer is aluminium membrane with heat and cold retention functions. The container can keep the ice for 20 hours when filled with a certain amount of ice, and 6 hours when kept warm. Three-in-one design: This cooler box with wheels include one foldable soft sided cooler bag and one folding hand trolley. You can use the soft cooler or small dolly separately. The trolley can carry upto 35KG weight and it is a good tool in daily moving or luggage transport! Versatility usage: lightweight soft-sided cooler,easy transpor. It is suitable for picnics, outdoor activities, camping, fishing, barbecues, cherry blossom viewing and many other occasions. You can enjoy cold drinks in summer and hot food in winter! Keeps drinks cool and food fresh. Hand Trolley Sold separately:The folding cart in this product is also sold separately, so if you would like to purchase this trolley separately, please check our other products. Experience convenience and durability with our ZHJINGYU Collapsible Large Rolling Cooler. This 40L, 60-can capacity soft-sided cooler bag features a three-in-one design, including a foldable cooler bag and a detachable, 35KG-capacity folding hand trolley. The 4-layer insulation system keeps ice for up to 20 hours and maintains warmth for 6 hours. Measuring 15.7 x 11.02 x 15.75 inches, it's perfect for picnics, camping, and outdoor activities. The mesh side pockets provide additional storage for your gear. Enjoy cold drinks in summer and hot food in winter with this versatile cooler.