FourSquare Make it 8 Block Kit
With this simple kit you get a single FourSquare Block with all its hardware along with the extra hardware and instructions to make your current Block and Handle into an "EightSquare".
The FourSquare is made of rugged T6061 hard anodized aluminum. Use the "EightSquare" with any combination up to eight speed-lights. This setup is perfect when you need that extra oomph to create those amazing stop action shots.
The Block itself is a compact 3 1/4 x 3 1/4 x 3/4 inch size.