Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: This item is a necessary accessory for DIY engraving machine. It is a professional laser head with high speed and high stability. Product Features: Professional laser head with high speed, high precision and high stability. Bright violet light, easy for locating when engraving. Adjustable laser head, easy to adjust, ensure engraving with good quality and high efficiency. Can be used to engrave bamboo, leather, cut paper, PCB or other flammable Product materials. Suitable for DIY engraving machine, easy to install. Specifications: Product material: Metal Light Color: Violet Power: 1000mW Wave Length: 405nm Input Voltage: 4.5-5V Laser Working Temperature: 500°C Item Size: 1 * 4.5cm / 0.39 * 1.77in(D * H) Item Weight: 18g / 0.65oz Package Size: 9 * 6.5 * 1cm / 3.54 * 2.56 * 0.39in Package Weight: 19g / 0.67oz Package List: 1 * Laser Head Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.