I'm not sure why everyone is saying to google it. Wouldn't it be easier for the person creating the ad to just put the caliber in the post? It seems to me that if you really want to sell something, you would put as much information in the ad that people will want or need. Telling people to google it is just an extra step for the potential client to do. People complain about customer service from companies all of the time, but if the people looked at what they do, they'd realize they could use some help in that area as well.
If you want to sell something, you make it as easy and painless as possible for other people.
If you want to sell something, you make it as easy and painless as possible for other people.