Button Types

Happ Concave - Happ Concave push buttons are arcade buttons that are found in most U.S. based arcades.  That have a slight dip in the center to help rest your finger and use high quality cherry microswitches that are designed for over 10,000,000 cycles.  These buttons come in a variety of colors.

Happ Convex - Happ Convex (aka competition) buttons are the mechanical design as the Concave buttons, except the tops of the buttons are bubbled (convex) rather than indented.  These buttons are for players that like to slide their fingers across the buttons for fast action.  These buttons come in a variety of colors.

Sanwa OBSN - The Sanwa OBSN push buttons are slightly larger in diameter than the happ buttons, but they are also very precise.  Very little pressure on these buttons will activate them making them the button of choice for many professional players.  These buttons are also convex.

Seimitsu PS-14-KN -  The Seimitsu buttons are very similar to the Sanwa buttons, maybe slightly less sensitive to the touch.  The advantage with these buttons is more cosmetic than anything.  They are clear buttons that when applied with artwork, allow the artwork image to be imprinted onto the button.  These buttons are special ordered for each stick and come in Blue, Red, Green, Pink, Yellow, Clear, Orange and Purple.