Pen-style rotary tattoo machine for use with needle cartridges. Compatible with all standard tattoo power supplies. Machine frame are made from solid rods of high grade aluminum then polished and anodized, laser engraved logo The grip is safe to be sterilized in an autoclave. Rotate the grip to remove it or adjust needle‘s depth. This tattoo machine frame part is separate with the grip. Clean the tattoo machine frame easily. Seamless frame that protect the inside of the machine. Utilize special custom Coreless motor, research and tested tens of thousands of times, then apply this unique motor from factory.