Kit Kat KING SIZE Chocolate Bar from Hershey. Need a break? Who doesn't? How about a Kit Kat Candy Bar – King Size? The Kit Kat wafer bar is a light, crispy wafer wrapped in chocolate. This unique candy is made so you can break off a piece to share, but once you taste it, you may not want to share. Smooth milk chocolate and crispy wafers are what make Kit Kat a delicious treat. Each king size bar is 3.0 ounces and there are 24 bars per box.