Features:
Durable， lightweight and high quality ABS construction. 
With LED lights， it is convenient for working at dark environment.
There two parallel lens assembly parts， and you can also overlap two lenses.
Adjustable head strap for different sizes.
Detachable bulb device， the angle of lamplight can also be adjusted.
2 bright LED bulbs to illuminate viewing field.
Suitable for repairing， handicraft， tailoring， etc.

Specifications:
Lens Material: Acrylic
Frame Material: ABS
Color：Grey， Red(optional)
Battery: 2 * AAA Batteries(not included)
Multiplying power of lens: 1.5X， 3X， 8.5X， 10X
Size of Lens: 8.9 * 2.8cm / 3.5 * 1.1in
Single-lens Diameter: 3cm / 1.2in
Item Size: 23 * 17 * 5cm / 9.06 * 6.71 * 1.97in
Item Weight: 178g / 6.28oz
Package Size: 26.5 * 20 * 6.2cm / 10.43 * 7.87 * 2.44in
Package Weight: 281g / 9.92oz

Package List:
1 * Headband Magnifier
1 * Box

Notes:
Please allow 1-2cm (0.4-0.8") differences due to manual measurement， thanks.