Package Dimensions:25 x 13 x 3 cm 304 Grams Number of Items:1 Manufacturer Item Weight:304 g Feature: 1. Magnifier Lens: The lens is made of optical glass, with high magnification, suits perfectly for observing small object and text. 2. Comfy Handling: The shape of the handle adopts an ergonomic design, comfortable to hold for a long time without getting tired. 3. With LED Light: The LED light source control adopts 4 gears push , which has a light hand feel and high sensitivity. 4. Easy Adjusting: Allows for 3 colour temperature switching, can be easily adjusted among cold light, warm light and mixed light. 5. Extensive Uses: Used in office, school, outdoor, home, printing, welding, biological observation, antique appreciation and so on. How to Use: Light Source Switching: 1. Press the LED switch once to turn on the cold light LED 2. Press the LED switch twice to turn on the warm LED (pre sleep state) 3. Press the LED switch for the third time to turn on the cold and warm mixed colour LED (reading state) 4. Press the LED switch for the fourth time to turn off the LED light. Specification: Item Type: Magnifying Glass Model: 7719-21 Material: ABS Optical Glass Battery: 1 x lithium battery 1.5A 1200mAh (built in battery) Function: For object observation. Product Size: Approx. 24 x 12 x 2.5cm 9.45 x 4.72 x 0.98in Product Light Source: 21 x LED Light Colour Temperature: Cold light, warm light, mixed light (adjusbExtensive Uses b: Used in office, school, outdoor, home, printing, welding, biological observation, antique appreciation and so on. bComfy Handling b: The shape of the handle adopts an ergonomic design, comfortable to hold for a long time without getting tired. bWith LED Light b: The LED light source control adopts 4 gears push , which has a light hand feel and high sensitivity. bMagnifier Lens b: The lens is made of optical glass, with high magnification, suits perfectly for observing small object and text. bEasy Adjusting b: Allows for 3 colour temperature switching, can be easily adjusted among cold light, warm light and mixed light.