VOLKL V-CELL 9In a word power! The Volkl V Cell 9 meets the modern player's demand for added power to punish opponents and push them off the baseline. The combination of V Cell materials in the frame's layup creates a softer but still responsive feel. To improve comfort, Volkl has included its VTEX butt cap which uses polymer to absorb vibrations. Volkl Super Grommets give the racquet head more dynamic power and spin potential by giving your strings more movement