Features: The machine can engrave on paper, acrylic, bamboo, cloth, coated metal, composites, cork, crystal, fabric/denim, fiberglass, foam, glass, kevlar, laminated plastic, leather, marble, plastic, paper, rubber, wood, stone, etc. This 40w laser engraving machine is a small laser engraving equipment. It is suitable for cutting, sign making, badges , gift engraving, gasket cutting, stencil making, model making, nameplates, notary seals, personalized desk accessories, plaques, rubber stamps, serialization, souvenirs, etc. Warranty policy: 180 days warranty on laser engraver. 3 months on laser tube , lense 1 year free technical support by email or phone No guaranty for the free water pump, exhaust fan during transportation and using. Technical parameter: Model lk-40w : Laser power : 40w Engraving area: Imperial:9 x8 inch Metric 230 x 200mm Exterior size : Imperial:31 x20x 12inch Metric 800 x 500 x 300mm Clamp breadth: Imperial : 8x5.5inch Metric 200 x 140 mm Carving speed: Imperial:472inch/min Metric 12000mm/min Differentiate precision: Imperial:0.0001inch Metric:0.0254mm Orient precision: Imperial:0.0001inch Metric:0.0254mm Minimum shaping characters english 1 mm (0.039inch) Power voltage ac 110v or 220v, 50-60hz Power of the complete machine 200w Weight 38kg Packing way: paper box Craving table-board platform with clamp We also have new 40watt laser tubes for sale . Net weight:40kg Gross weight 42kg