3 Magnifying Lens LED Light Magnifier Lamp for Soldering Field with Clip, Ideal Gadget to Leave Your Hands Free to Work on Your Project. A useful aid for soldering work or model makers. Adjustable crocodile holding clamps. Heavy duty base. Ideal gadget to leave your hands free to work on your project. LED lights help to work in the dark. With three pieces of AAA batteries ( Not included ), the 2 LED lights could last for more than 10 hours. Steel plate bottom provides stability. Material of lens: Glass. Main lens magnifying multiple: 3.5X. Accessorial lens magnifying multiple: 12X. Main lens size (diameter): 65mm/2.6inches. Accessorial lens size (diameter): 17mm/0.7inches. Batteries: LR03AAA required but not included. Weld holder size (diameter * Length): 3 * 9cm (1.2 * 3.5inches). Base size: 10 * 6.5 * 2cm (4 * 2.6 * 0.8inches). Package size: 16 * 15 * 11cm (6.3 * 6.0 * 4.3inches). Color: Black +Silver