Colour:White black Product Dimensions:17.5 x 11.5 x 7 cm 185 Grams Special Features:150 Item Weight:185 g Features: Wearable Magnifier: Head mount design makes it more convenient to use than traditional handheld magnifiers, free your hands and help you see things much clearer. 4 Interchangeable Lens: 10X, 15X, 20X, 25X magnifications is interchangeable to meet your needs. 2 LED Lights: Powered by 3pcs AAA ( not included ), help work in low- light conditions. Each LED light has an independent on off switch. Premium Material: Made from premium ABS material, wear- resistant and long lasting Inside anti- sdesign and back strap keep the magnifier stable on your head, not easy to fall off. Wide Application: Perfect for mechanical processing, appraisal, watch amp clock repair, miniature engraving, etc. Attention: It is suggested to use a single eye for viewing at area only because focus will fail when using both eyes lenses at the same time. Specification: Item Type: Double Eye Magnifier Magnification: 10X 15X 20X 25X Sight Distance: 5cm at 10X magnification, 2- 3cm at 15X magnification, 1- 2cm at 20X magnification, 0. 5- 1cm at 25X magnification Power Supply: 3 AAA batteries ( NOT INCLUDED ) Color: White Black Material: ABS Product Size: 200 170 70mm Note: Please allow 1- 3cm ( 0. 4- 1. 18" ) difference due to manual measurement and slight color variation for different display setting. Thank you for your understanding, nice day! Package Includes: 1 x Double Eye Magnifier ( A pair built- in lens ) 3 x Pair of Interchangeable Lens 1 x User ManualbAttention b: It is suggested to use a single eye for viewing at area only because focus will fail when using both eyes lenses at the same time. b bPremium Material: Made from premium ABS material, wear- resistant and long lasting Inside anti- sdesign and back strap keep the magnifier stable on your head, not easy to fall off. b4 Interchangeable Lens b: 10X, 15X, 20X, 25X magnifications is interchangeable to meet your needs. bWearable Magnifier b: Head mount design makes it more convenient to use than traditional handheld magnifiers, free your hands and help you see things much clearer. bWide Application b: Perfect for mechanical processing, appraisal, watch clock repair, miniature engraving, etc.