Multiple Commercial Visa Info needed (Jeddah)

Hi

I am coming to Jeddah, supposedly this week, but I have been awaiting my visa information from my sponsors. They are bringing me over on a multiple commercial visa and I can't seem to find much information about this type of visa. I asked for an exit/re-entry visa so I could come and go until my residency is sorted. Anyone got any info on this visa please? Is it ok, and how long is it for etc etc would be a great help. Thank you. :)