The Impact 7" Grid Set (10/20/30/40 Degree) helps you control your light more precisely. This set of 4 honeycomb grids, which fit any standard 7" grid reflector (other than Broncolor or Profoto), gives you a choice of a 10°, 20°, 30°, or 40° beam of light, to match your specific needs, perfect for an accent light or spot. A tension spring can stretch or arch to fit the reflector.