Notice: The focus length is 45mm of 10 W laser head, the hight of the protection enclosure is 38mm, so when you adjust the focus length, the distance between the engraving surface and the bottom of the protection enclosure should be 7mm. This information is missed in the manual. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Engraving".
The seller is "coralbaymart" and is located in this country: US. This item can be shipped to United States.