KUER cooler series B includes 10/20/35/45/75/110qt, 70/110qt cooler with wheels.Various sizes to meet your various needs.Rotational structure of integrated products, high strength, solid and durable,extra thick closed-cell foam insulation，can keep your things cold for 5-7 days.Built-in two bottle openers made of stainless steel one on each side of the lid.The combination of durable rubber T-lat chess will keep your food and beverages secure.The unique design of pressure relief value makes it easier to open the cooler box, especially when the internal and external air pressure is out of balance.Equipped with non slip, seamless feet pads, which keep the box stability on the ground.The overall rounded style of the cooler.