portable laser 3d crystal engraver diode pump engraving area:80x80x80mm(optional) air cooling 80 sets/month SH-YIE Laser 3D Subsurface Engraving MachineMain ... system, 1 set of operating computer(relative software for laser image and laser control installed),operation manual, 1 pair of goggle, spare ... 2D/3D image model files installed in the computer,etc. portable laser 3d crystal engraver