The insulation box is made of food grade environmentally friendly HDPP and HDPE materials, and is refined through the world's most advanced rotary molding process. The bottom is equipped with a thick and wear-resistant foot pad, which is non-toxic, odorless, UV resistant, and not easy to change color. The surface is smooth, easy to clean, and the insulation effect is good. It is not afraid of falling or touching, and can be used for a lifetime. The product is used in conjunction with cold storage ice crystal boxes and ice bags, with a cooling effect that exceeds industry standards in the United States. The continuous refrigeration and insulation time can reach several days.