Come and see our amazing products. The material of this product is aluminum alloy + ABS. Portable, convenient, comfortable, arc-shaped hand warmer and mobile power supply, two in one. Suitable for travel, sports, fishing, hiking, camping and skiing. A warm solution for cold weather. Double-sided heat preservation as a hand warmer. Customize with your company's logo or brand. Pls confirm with us about the packing info, stock status and exact production time before placing your orders.