My lighting kit arrived today. It consisted of two umbrellas,
two light stands and two brackets to hold them together.

I mounted a 550EX to right stand and a 430EX to the left. Set the 550EX
to master (A) and the 430EX to slave (B) with the A:B ratio set to 2:1.

Here is a picture of the Canon 24-70mm f/2.8L lens with the hood on.