Black Knight QuickSilver TC Squash Racquets : The introduction of Thermal Core technology into the Black Knight QuickSilver TC squash racquet results in a stiffer frame that reacts like a more flexible frame. A lighter weight and head-light construction makes it a quicker racquet and incredibly maneuverable. Ideal for control players. Strung with Ashaway PowerNick18. Wrapped with Rad Cushion grip.