Divider groove FDA grade silicone molded gasket for a tight seal. Measurement 16QT come with removable carry straps L16.5W12.75H15 Outer 16QT=4gal L10.25W8.75 H12 Inner Outer bottom side/side 13 inch Outer bottom front/back 11 inch (16QT) ON SALE gym L21W13H16 Outer 26QT=6.5gal L14.75W9H12.75 Inner (26QT) ON SALE L28W16.25H16.50 Outer 48QT=12gal L21W11H12.50 Inner (48QT) ON SALE L34.5W17.25H17.25 Outer70QT=17.5 L27.5W12.5H13 Inner (70QT) ON SALE!! All we sell are high end coolers Frostbite Coolers and Icey-Tek Cooler has 16 different colors. Thank you I'm here to help.The item "SUMMER SALEFrostbite Cooler 16QT Free Ship PICK A color. FREE SHIPPING" is in sale since Thursday, March 19, 2015. This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Camping Cooking Supplies\Camping Ice Boxes & Coolers". The seller is "obxsummerfun" and is located in Rocky Mount, North Carolina. This item can be shipped to United States.