rare Cokin creative flash system. Fits on A series holder around lens to give macro flash from three angles. Each can be filtered. It takes 4 AA 1.5v batteries. Pack has dedication switch for various cameras SD? Olympus ME? Pentax Nikon and Canon. 5 auto stops, plus wide.
Good with no contacts corrosion. The plastic tab that attaches to the cokin holder has cracked and been glued on. It's solid and should cause no problems if handled carefully. Tested and working