It is not only a flash, but also a gray card

On the one hand, when you fix it to the camera, it may be a flash. There are three colors on the other side-white/gray/black. It can help you complete the white balance correction

Lightweight, easy to carry, suitable for most flashes, and easy to install

Folding design, can be folded into a flat shape, easy to use

This Soft Box/diffuser can diffuse direct light with flash

Compared with direct flash, there is a significant improvement, it will cause harsh shadows

The gray card can balance all mixed light to 18% neutral gray

Using a photometer, you will obtain an accurate exposure value by recording the light reflected from the gray card. (It can measure the exposure value by exposure photometer, TTL SLR camera and digital camera.)

The gray card can not only be used to measure the camera's exposure value, but also can adjust the color balance by controlling the gray balance in digital photography to be true and perfect to restore the color

The size of the mounting point is adjustable, and it is suitable for conventional flashes (for Nikon, for Canon, for Sunpak, for Sony, for Pentax, for Vivitar, etc.)