Feature: 1. 【High Quality Materials】The aluminum card is made of aluminum alloy, strong, not easy to bend, suitable for laser engraving or laser debugging, can print the text or pattern you want on the business card. 2. 【Wide Range Of Uses】Can be applied as promotion metal business VIP card, gift card, metal plaque, name plate, table plate, label plate, business card, table number plate, gift metal card, etc., and the carved logo will always be retained and High quality. Also use the engraving machine to carve your favorite business cards. 3. 【 Multi-color Use】There are 100 pieces blank aluminum business cards in one package, 10 different colors (contains green,yellow, silver, red，purple, dark blue, light blue,gold, rose gold, black ), 10 colors shipped randomly; You can DIY your own cards for yourself or others. 4. 【Suitable size】the size of an aluminum business card is 86*54*0.198mm/3.38 x 2.12*0.0078 inches (L * W*T), right size for easy carrying and storing; The surface of business card is smooth and glossy, and the edge is not rough, advanced and elegant. 5. 【Operating Requirement】Make sure your engraver is powerful enough to engrave metal, These metal business cards can NOT support lower power engraver . Specification: Professional metal marking laser module, easy to install, with lower loss, provides 1064nm wavelengt, an engraving accuracy of 0.001 mm,service life up to 20,000 hours, suitable for a wide range of engraving machines.It needs to be used with an engraving machine，allows you to engrave clearly and quickly on a variety of surfaces. Features: 【Metal Marking Laser Module】With 1064nm infrared fiber laser,industrial grade optical sensor, dual optical lens, accurate focusing, low light loss, precise and fast laser focusing . With large size cooling fan for heat dissipation.It is the best choice for metal marking enthusiasts. 【Quality Matetrial】Made of premium quality aluminum alloy casing with great durability. 【Wide Application】Can carve any plastic (excluding transparent plastic), any metal and alloy, rare metal (gold, silver, titanium), metal oxide (aluminum oxide carving effect is very good), objects with paint (such as painted glass, painted wood, painted paper and other materials with paint), artificial PU leather; Can't carve transparent materials, logs, raw bamboo, kraft paper, other materials besides these can be basically carved. 【Fine Engraving & Precise Positioning】0.01-0.02mm ultra-long and ultra-fine infrared laser can display every detail of engraving and present pixels. The laser module adopts infrared light positioning design, which can accurately locate the marking position without offset and good position. 【Adjustable Installation Position】Metal Plate for adjusting the mounting height is included in the package. It allows the laser head to move up and down according to your installation height requirements. Note: The laser module is suitable for engraving and has no cutting function. Specifications: Shell Material: Aluminium Alloy Voltage: 12V Laser Power：20W Optical Power: 8000mw Laser Wavelength: 1064nm Lens: Fixed Focus Lens Engraving accuracy: ≤0.01mm Repeat marking accuracy: ≤0.01mm Control Signal: PWM/TTL Luminous Color: Red (invisible light design） Best Distance From The Object toThe Lens: 20mm/0.79in Life Time: ≥20,000 hours Connector Type：3pin (If you need 2pin connector, you can contact us) Product Size:145*50*50mm /5.7*1.97*1.97in Product Weight: 468g/16.5oz Package Size:167*79*60mm/6.57*3.1*2.4in Package Weight: 552g/19.5oz Package List: 1 * Laser Module 1 * Adjustable Mounting Plate 2 * Auminum sheet (Used for DIY test) 3 * Screw 3 * Plastic Hoop Package List: 1 * Laser Module 1 * Adjustable Mounting Plate 2 * Auminum sheet (Used for DIY test) 3 * Screw 3 * Plastic Hoop