When all you want to take fishing is a pack of sandeels and a couple of mackerel it is pointless taking an enormous cool bag. Ammo not only supply top quality frozen bait, but also these practical cool bags which are just the thing to hold enough bait for a few hours fishing. The guy's at Ammo will tell you that as long as there is minimal air circulating around your frozen bait, the longer it will stay frozen. A zip closure and Velcro flap ensure that the bag stays sealed securely. Approximately 13"x9".