For years, Matt Flaherty watched major league baseball games on television and cringed at the sight of catchers using makeshift items so pitchers could distinguish their intricate in-game hand signals.
Some catchers applied athletic tape between their middle knuckles. Others spray painted or nail polished fingertips or chalked their hands in the dirt while squatting behind the batter's box. Flaherty even noticed that former New York Yankees catcher Jorge Posada dabbed his nails with Wite-Out.
There had to be an easier, more uniformed way for catchers to push their message across, Flaherty thought. Athletic tape, after all, constricted a catcher's ability to throw. And painting nails ruined cuticles and took forever to remove after the game.
Flaherty and his friend Nathan Passantino, both former college baseball players, hatched an idea together to remedy the problem.
"After about the third or fourth year, we decided to get our butts in gear and make a move on it,&qu...