The Franklin Signature Carbon STK 14.5mm’s STK carbon fiber surface creates a naturally texturized paddle surface to increase the spin and ball control to make premium takes. The 0.571-inch Poly Pro core provides an improved sweet spot that gives a perfect balance between control and power. The one-piece core construction maximizes the structural integrity between the face and handle for higher stability and durability. Its 5.6-inch handle provides maximum range, more comfort, and impact absorption.