Feature: Color: Black Size: 95x29mm 1. One of the hardest parts of taking blood can be finding a suitable vein. Some patients are difficult sticks; their veins are either very small or deep, making it challenging for healthcare professionals to locate a suitable site quickly and efficiently. 2. Repetitive needle attempts can be uncomfortable for the patient and may also reduce their confidence in the phlebotomist performing the procedure. 3. This device is designed to assist in visualizing veins, making it easier to identify potential sites for venipuncture. It is suitable for use in small clinics, medical facilities, and by trained professionals. How to use: Step 1: Minimize ambient light. A dark room will provide the best results. Press the button on the bottom of the device to turn on the infrared LED. Step 2: Gently press the device against the skin and slowly move it from one side to the other. Veins will appear as shadows or dark lines at the periphery of the red glow emitted by the device. Note: The device must remain in contact with the skin during use. It will not function properly if held away from the skin. Step 3: Once a vein is located (shown as dark shadows or lines), adjust the position of the device around that area to achieve the clearest visualization. For veins closer to the surface, slightly increase the distance between the device and the skin if the light appears too bright. Follow the path of the vein to determine its full direction and length. Note: It is best to select a vein with a straight and clear path. Includes: 1 x Black Vein Finder Device (3 x AAA batteries not included)