The colorful laser marking paper works with CO2 laser marking machine, fiber laser marking machine, semiconductor laser marking machine, UV laser marking machine, Diode DIY Laser Engraver Machine Tools, like for DAJA and machine. The CO2 laser engraved best. The laser engraver paper can be used on ceramics glass crystal stone plastic Material, such as plates, cups, tiles, accessories. But it cannot be used on metal material, like aluminum, stainless steel, iron etc. So it is widely used for personalize holiday gifts, festival decor, home decor, Father's Day gifts, design etc. It depends on laser engraving machine and and system parameter settings. Because different lasers, different power, diffferent speed, different materials even different color paper require different parameter settings, 't give users specific parameter values. Users need to adjust the parameters through testing to get good engraving results. If you are a newer, we suggest you buy the black one to try first, becuase black is easy to color. The laser penetrates the ink on the marking paper into object through the thermal effect,thus making it successfully color.the laser color marking paper that is insoluble in water,anti-corrosion,non-fading,& anti-scratch,so pattern can firmly bond to the of the object.maybe you'll find that directly engraving on glass acrylic/ceramic may fail,becuase most of these objects are transparent and cannot leave any traces of engraving,color marking paper is the perfect solution for those issues The size of the color marking paper is large enough to cut into any size to meet different needs. Tips: In order to avoid damage, please put it in its plastic bag (don't fold it) and store it in a cool and dry place. Material: Paper colour: Black Package Contents: 1 sheet x laser marking paper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.