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 easily. 2. Repetitive needle sticks can be painful for the patient and may reduce their confidence in the phlebotomist performing the procedure. 3. This device is designed to assist in locating veins, making it suitable for use in small clinics or facilities, as well as by collectors and hobbyists. It is intended for general vein visualization purposes with minimal discomfort. How to use: Step 1: Minimize 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 on the skin and slowly move the device from one side to the other. Veins will appear as shadows or dark lines around the periphery of the device, which emits a red glow. Note: The device must be in contact with the skin when searching for veins. Results may not be visible if the device is held away from the skin. Step 3: Once a vein is located (shown as dark shadows or lines), adjust the position of the infrared light around that area to achieve the clearest view. For veins closer to the surface, slightly increase the distance between the device and skin if the light appears too bright. Follow the path of the vein to fully visualize its direction and length. Note: It is best to select a vein with a straight path. Includes: 1 x Black Vein Finder Device (3 x AAA batteries not included)