Carbon fiber layers will add more speed to a racket and it will also increase the size of the sweet-spot, making the racket more consistent. Carbon also acts as a reinforcing layer which will strengthen the racket. Due to this, most Carbon blades have a ‘hard' feel which are ideal for hitters and power play.
Many different woods are used in modern blade construction. Each wood type has its own unique feel and speed that is inherent to the wood. The speed rating of a racket indicates the integrated pace of the ball relative to other rackets.