6 Cribbage Pegs
Cribbage pegs usuelly come in sets six, three of each color. This is because each play uses one peg to keep track of how many games they won using the central score board which looks like two side by side lines of holes most commenly located in the center of the board. The other two to score the game in progress.
Standard 52 Card Deck
The actuel play of cribbage is not on the board but using playing cards, the board itself is just a score board and play can be done without it. For Cribbage play a classic 52 card deck with no jokers is required.
One Cribbage Board
While not completely necessary for play as one can keep track of score on paper the board does add a lot. A cribbage board adds the physical gains from each hand played making overall the game more fun.