A pointing device (1) for generating light spots on a ware that is arranged in a showcase includes a part (3) that is arranged on the outside of the showcase panel (2), on which a light source (8) with an activating switch (11) is mounted. The device (1) also includes a part (4) that is arranged on the inside of the showcase panel (2) and has a hole (10) for the passage of the light beam (9), which is generated by the light source (8). The parts (3) and (4) of the device (1) are held together by magnetic forces and rest on the showcase panel (2) via sliding surfaces (6).