We bought a ozark 60 quart cooler (yetti knock off) with all the bells and whistles (roller wheels, extendable arm, bottle opener, drain, locking latches), all of the features worked very well other than keeping ice frozen. We bought 3 7# of ice Sunday at noon and they were all completely melted within 24 hours. Do not buy a ozark from walmart if you are expecting long lasting ice. We are returning this product tomorrow. I give this product a 1 out of 5 and do not recommend this product.