High Quality Material--The surface is smooth and sturdy. Its PC+ABS high-density material is fire-resistant, will be carbonized in fire, not be burned. Premium cable, strong and durable. Drying principle--Portable boot dryer and shoe dryer combine traditional convection drying with forced air to form 360 hot air circulation without dead angle Fast drying and constant temperature--The portable dryer can reduce the peculiar smell formed by the moisture in shoes. Compared with most other portable dryers, the mixed forced air and convection system can heat the shoes to 55-60 degrees in a shorter time and then dry them with constant temperature. The custom timing shoe dryer with hot air can prevent the shoes from degumming and protect your shoes. Safety voltage--The ski boot dryer with heating function is equipped with AC/DC power adapter. The compact design means that you can use it at home, in the car, or during travel. It has high-quality cables, automatic warning for overheating, and stops heating. Provide safety and health protection for you and your family to enjoy skiing or travel. Multi purpose--This boot and shoe dryer, with fan, heating and timing functions, can be used together with all types of winter boots, work boots, rain boots, hunting boots, boxing boots, tennis shoes, sports boots, travel boots, ski boot linings, gloves, hats and socks to dry quickly without excessive drying Timing Modes--One key switch. You can set different timing according to your needs. It is safe and silent, very easy and convenient to use.