Come and see our amazing products. This flashlight is made of aluminum alloy and can work continuously for 4 hours. The lens is a double-coated lens with strong light transmission. The interface is sealed by silicone and is super waterproof. The product is small in size and suitable for camping and outdoor sports. It is also an ideal promotional gift. The price includes shipping.1"L x 1"W x 3.22"H. Pls confirm further with us if any query about packing info, inventory status and time schedule.