Features: - Color: Black - Size: 95x29mm Benefits: 1. Locating veins can be challenging, especially for patients with small or deep veins. 2. Repeated attempts can cause discomfort and reduce patient confidence. 3. This device helps professionals and hobbyists find veins quickly with minimal attempts. Usage: 1. Reduce ambient light for best results. Press the button to activate the IR LED. 2. Gently press the device against the skin and move it side to side. Veins will appear as dark lines or shadows with a red glow. 3. Keep the device in contact with the skin for accurate detection. Adjust the light distance for optimal visibility, especially for shallow veins. Tip: Straight veins are easier to locate. Package includes: 1 red light flashlight.