1High Power Red LED: Nine circular red LED lights make finding vein quick and easy. Blood naturally absorbs this frequency of light, causing veins to become more visible through skin. 2Easy to Find Vein: Gently press the skin with your hand and slowly move the device from side to side. Veins will appear as shadows or dark lines and appear on the periphery of the red light surrounding the device. 3Easy to Carry: This vein finder viewer is slim and compact, making it for carrying around. You can carry it in your bag or in your clothes pocket. It can be easily used at home or outdoors. 4Application Situations: Widely used in pediatrics, oncology, radiology, emergency, geriatric, laboratory, surgery, outpatient, plastic, vascular, etc. 5Applicable People: especially suitable for baby, children, obesity patients, people with dark skin or hairy skin in their face, forehead, handbacks, arms, legs, face, etc.1 x Vein Finder Viewer