... 1 focus optic (11) Rotary attachment(option) Applicable materials:Cutting and engraving: rubber, plastic, organic ... glass, cloth, leather, wool fabric, ceramics, tile, crystal, acrylic, jade, bamboo, wood, and other nonmetal materials ... 1-100%software setting8) Smallest Character Engraving Chatacter: English 1x1mm9) Resetting positioning accuracy ...