Groovy Chic Thermos Funtainer Bottle & Food Jar Thermos double wall vacuum insulation for maximum cold temperature retention Kid-proof design - unbreakable stainless steel interior and exterior withstands daily wear and tear Dishwasher safe, Exterior stays condensation free, Non-slip, scratch resistant base Click on the Ultimate Back to School Sets link above to see similar back to school items available for sale! Bottle - 12 oz... Food Jar - 10 oz.; Food Jar Keeps Food Hot for 5 Hours, or Cold for 7 Hours; Beverage Bottle Keeps drinks Cold for 12 Hours