Cooler box for fishing or other uses

This a home made cooler box made from 60 mm kingspan insulation. A few frozen bottles of water in it and it keeps your fish in perfect condition for the whole day, the bottles will still be frozen at the end of the day and your fish, pollock , mackerel etc will be in perfect condition. We have been using it on our boat.The lid is slightly off square but doesn’t affect the function of it .It could also be used to keep ice flakes frozen or other uses. Internal size is 41.5x17x15 deep inches. External size is 47x23x18 high inches.