High 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. Applicable People: especially suitable for baby, children, obesity patients, people with dark skin or hairy skin in their face, forehead, handbacks, arms, legs, face, etc. Easy 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. Application Situations: Widely used in pediatrics, oncology, radiology, emergency, geriatric, laboratory, surgery, outpatient, plastic, vascular, etc. Easy to Carry: This vein finder viewer is slim and compact, making it perfect for carrying around. You can carry it in your bag or in your clothes pocket. It can be easily used at home or outdoors.Batteries not included Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store