NOTE: 1. The machine is DIY Kit, Need To Assemble By Yourself. 2. Materials can be engraved: wood, bamboo, paper, plastics, leather, rubber, horn, sponge sheet or other flammable plastic (such as phone case, mouse, pencil, name card, wallet, plastic comb). 3. Materials can’t be engraved: metals, glass, stone, ceramics, jewelry, silver, reflective material, translucent & transparent material. 4. Please wear laser goggles during using and avoid touching the laser directly with your eyes and skin! 5.Laser Head is Not included in this pack Package List: (DIY Kit, Need To Assemble By Yourself.) 1 * DIY CNC Engraving Machine Kit 10 * Drill Bits 1 * ER11 Spindle Chuck EU plug.