Are you looking for a professional, practical and infrared blood vessel ? Our products will be your good choice. It is made of craftsmanship and high-performance ABS material, has excellent durability and practicality, can help you find accurately and quickly, and directly use it to observe blood vessels on the skin of the body. This is a great tool that will serve you well. Features -Color: Black -Material: ABS. -Size: About 14.50X2.20X1.85cm/5.70X0.86X0.73inch. -Working voltage: 5V. -Light source power: 0.5 (W). -It is made of lightweight and ABS material, safe and practical, with excellent texture. -Small and light, easy to carry, easy to use, it will be your good tool choice. -It is designed to be directly used to observe blood vessels on the skin of the body to help you find it accurately and quickly. -The design is reasonable, the operation is simple, convenient and practical, it can be easily searched, and the pressure on nurses and patients can be reduced. -It is made of craftsmanship, strong and , efficient and gentle, and will not be easily damaged. Package list: 1 x 1 x manual 1 x data cable