New Perman Mini 9 LED Bright Light Waterproof Flashlight Adjustable Focus Light Lamp AAA (Blue ) Material: Aluminum alloy. Size: 8.7*2.5*2.5cm. Super mini size, bright, blinding effect. Skid-proof design & waterproof design. Adjustable focus range for different usage, stretching to adjust its focus. Convenience carry. Working voltage is wide and can utilize the batteries in the largest extent. Suitable for hunting, cycling, climbing, camping and outdoor activity etc.