BUTTONSET 31100: Avaya, 8410D, 39 PieceSet, Old Style
Replacement buttons for Avaya 8410D, 39 Piece Set, Old Style
What makes these "Old Style"?
Look at the bottom of the buttons. You will see a post that fits into the contact on the membrane. The shape determines old vs. new style. Old style has a square shaped post. "New Style" has a round shaped post.