There is also an exclusive franchise tender for exclusive negotiation rights.
http://www.nfl.com/freeagency
There are two types of franchise players. Clubs retain exclusive negotiating rights to an "exclusive" franchise player by committing to a minimum offer of the average of the top five salaries at the player's position as of the end of the restricted free-agent signing period on April 16, or a 20 percent increase over his 2003 salary, whichever is greater. Other clubs cannot negotiate with exclusive franchise players. Two exclusive franchise players were named this year -- San Francisco linebacker Julian Peterson and Oakland cornerback Charles Woodson.
http://www.nfl.com/freeagency