The game is played 7 on 7 on a CFL sized field, with all players eligible as receiver. The QB will take the snap 8 yards (+/-) behind the line of scrimmage and the defense can send a Rusher from 5 yards back.
Like the professional tackle leagues, this gives the QB about 2 seconds to throw a pass, or scramble to elude the rusher and extend the play. There are 3 downs to get 10 yards.
There is no tackling, no blocking, no chucking/jamming (contact with the receiver at the line of scrimmage), and fumbles are automatically dead.
As such, the game favours speed over size, and is less hard on the body.
Complete copies of the touch football rule book and a players guide are available here.