echosmile 30 quart rotomolded cooler, portable ice chest cooler with durable handles, keep ice up to 5days, white ice cooler suit for camping, travelling, fishing (36-can capacity) echosmile 🍺 for regular use, we suggest the outside temperature below 113°f and try to avoid prolonged exposure under the sunlight. recommended 2:1 ice-to-contents ratio and to open the lid only when you're needed, the less, the better to minimize heat transfer between cooler inside and outside. it will be better if you put the cooler in the freezer to pre-cool them before you fill them. <br> <br> <b>🍺 product name:</b> echosmile 30 qt cooler<br> <b>🍺 material:</b> rotomolded polyethylene lldpe<br> <b>🍺 weight:</b> 15.4lbs <br> <b>🍺 capacity:</b> 30qt <br> <b>🍺 outer dimension:</b> 21'' x 12'' x 13'' <br> <b>🍺 iner dimension:</b> 18'' x 9'' x 10'' <br> <b>🍺 color:</b> white<br> <b>🍺 cold holding temperature:</b> -75°f to 46°f <br> <b>🍺 cold storage time:</b> without power up to 5 days fresh keep<br>