Eco Friendly Tennis String 

The Head Hawk Tour rPET 16g Tennis String (Set) is the perfect string for high-level versatile players.  The Hawk tennis string was designed for advanced players who want maximum control and precision and was constructed with Crystal Core Technology (harder outer layer, softer inner core). The Tour features include a hexagonal string shape that offers more spin.  The Hawk Tour rPET is the first string to the market using recycled plastic bottles as the source for the string material.  Feaatures:Composition -  Polyester MonofilamentGauge -  16g/(1.30mm)Length - 40" SetColor - NaturalEco-Friendly - Made from recycled plastic bottles

The Head Hawk Tour rPET 17g Tennis String (Set) is the perfect string for high-level versatile players.  The Hawk tennis string was designed for advanced players who want maximum control and precision and was constructed with Crystal Core Technology (harder outer layer, softer inner core). The Tour features include a hexagonal string shape that offers more spin.  The Hawk Tour rPET is the first string to the market using recycled plastic bottles as the source for the string material.  Feaatures:Composition -  Polyester MonofilamentGauge -  17g/(1.25mm)Length - 40" SetColor - NaturalEco-Friendly - Made from recycled plastic bottles