Wilson Federer 105 Tennis Racquet is developed with Stable Shaft Technology. Stable Shaft Technology controls the flex at every part of racquet and ensures the perfect stability during shot delivery. Stable Staff gives greater accuracy and control over shots during critical game situations. 105 Sq Inch Head give large sweet spot and thus provides opportunity to deliver powerful drive shot during off canter Racquet & Ball contact.273 G weight and 27 inch height gives desired racquet swing for intermediate players. This Racquet consists of pre-strung configuration with 16 X 19 String pattern and 50-60 Pound of string tension. Cushion Aire Grip provides optimum level of cushioning effect and gripping action for super easy racquet handling.