The Profoto Off Camera Flash Barndoor is a compact and portable Light Shaping Tool that gives you precise control of the light spread. The four barndoors can be adjusted individually and the entire tool can be rotated 360 degrees on the flash head, allowing you to shape light in an infinite number of ways. The OCF Barndoors are made of a strong glass fiber and metal that makes it lightweight and extremely durable. The Barndoors are easily snapped onto the off-camera flash, ready to be used in a matter of seconds.