How to Send Out Multiple Offers to Landowners

I just can't even wrap my head. How are you sending these with an actual does every single mailer get like a numerical offer in it. Hi, we see this piece of land. Is it just hey we'd like to talk we're interested in something in this range like how specific are each of these that are going out? And then some basic terms of the agreement with their name and all that kind of stuff on there but yeah. That was you just teed up my next question perfectly because I wanted to know what are you since you're sending out so many mailers?"