<b>TIPS: For regular use, we suggest the outside temperature below 113℉ 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.</b><br><br> <b>Why choose EchoSmile cooler?</b><br><br> <b>1. EchoSmile cooler offers a 2-year warranty.</b> If you find any problems during using, feel free to contact us, we will do our best to provide high quality service.<br> <b>2. Long time ice retention.</b> We have tested the cooler. When the cooler is filled with ice, the holding time can keep 5-7 days, or longer.<br> <b>3. The price is reasonable.</b> Our products have the same insulation effect as other branded products, but our company is committed to bringing the best products to customers and giving them the most suitable price. Small profits but quick turnover.<br><br> <b>Product Name: </b>EchoSmile 25 QT Cooler with cup holders<br> <b>Material: </b>Rotomolded Polyethylene LLDPE<br> <b>Weight:</b> 15.4Lbs<br> <b>Capacity:</b> 25QT<br> <b>Outer Dimension: </b>20"L x 13"W x 15"H<br> <b>Iner Dimension:</b> 14"L x 8"W x 11"H<br> <b>Cold Holding Temperature:</b> -75℉ to 46℉<br> <b>Cold Storage Time:</b> Full ice up to 5-7 days.