Cool Coolers Ice Packs are perfectly sized to fit in all types of lunch bags and boxes. So go ahead and send them off to school with cheese, milk, fruit or veggies knowing that what you pack will stay cool and fresh. With the Cool Coolers Ice Packs no matter what food you pair with them, it will stay safe and fresh from morning ‘til lunch and beyond! Each ice pack measures 4.75" wide, 0.25" thick, 4.75" tall, the perfect size for everyday use! Set includes 12 ice packs (3 packs of 4).