2D/3D hologram, Dot-matrix hologram, Flip Flop hologram, Electron-beam lithography hologram, Concealed pictures, Guilloché pattern (high resolution line patterns), Kinetic pictures, Microtexts or nano texts, CLR (Covert Laser Readable) picture, Computer-synthesized 2D/3D and 3D graphics, True colour picture, Numbering/barcode/QR code printing hologram, Invisible UV logo hologram. Security holograms are tags using a hologram printed for sale safety reasons on it. Holograms on safety labels are tricky as they're reproduced from a master hologram that requires specialized, expensive and advanced gear to forge. Holograms are grouped to this level of degree of safety integrated throughout the process of master origination in them.