Profoto Pro Head Plus
"This is the standard head for our Pro Studio packs. It’s remarkably lightweight and compact in size, but it’s equally as tough and reliable as the Pro packs themselves. The ProHead Plus is compatible with more than 120 Profoto light shaping tools and designed to support the Profoto zoom function. It’s a unique feature that allows you to shape light by simply sliding the reflector back and forth on the head."