Feature: Color: Black Size: 95x29mm One of the most challenging aspects of blood collection is locating a suitable vein. Some patients are considered difficult sticks due to small or deep veins, making it hard for healthcare professionals to identify an appropriate site quickly and efficiently. Multiple needle insertion attempts can cause discomfort and may affect patient confidence in the phlebotomist. This device is designed to assist in visualizing veins, making it useful for small clinics, medical professionals, and personal use. It helps locate veins with fewer attempts. How to use: Step 1: Minimize ambient light. A dark environment provides optimal results. Press the button on the bottom of the device to activate the infrared LED. Step 2: Apply gentle pressure on the skin and slowly move the device across the area. Veins will appear as dark lines or shadows at the periphery of the red glow emitted by the device. Note: The device must be in direct contact with the skin to function properly. No results will be visible if held away from the skin. Step 3: Once a vein is located (shown as dark lines), adjust the device around the area to achieve the clearest view. For superficial veins, slightly increase the distance between the device and skin if the light is too bright. Follow the vein path to assess its direction and length. Note: It is best to select a vein with a straight path. Includes: 1 x Black Vein Finder Device (3 AAA batteries not included)