RSC 4-Honeycomb Grid Bundle for 7" Reflector contains 4 snap-in modifiers that narrow the beam spread into a soft-edged circle, control spill light, and allow you to selectively light areas of your subject. The bundle includes 10, 20, 30, and 40° grids. The lower the number, the narrower the light's beam. The size of the projected circle of light not only depends on the grid selected, but also its distance from the subject.