These are "thick-walled" heavy duty styrofoam coolers, the kind that meat is shipped across county in packed in dry ice. They are made by Polar-Tec. This lot contains 4 coolers (sorry, there are 6 shown in the photos, but I am keeping 2 of them), each cooler measures 15" in length x 13" in width x 10" in depth. They are ALL in very good shape - no chips out of the styrofoam (a few small "dings") - but are ready for general use.