When you get the Silver Pack, you will receive two of each of the following boosts in your inventory:

• 2 x 1 Hour 150% MCmmo xp Boost 

• 2 x 1 Hour 150% Jobs xp Boost 

• 2 x 1 Hour 150% Jobs Money Boost

You may activate these boosts all at the same time, or separately if you choose.
Upon activating the boost, everyone on the server during this time will have the boosts activated for them too!