Billie Jean King's Eye Coach Junior Replacement Arm NRG2 Functions: Start / Stop and

Functions: Start / Stop and Sweep (left/right)

RPM Blast is the string used by Rafael Nadal

Ashaway has increased linear density of the finished string

including optical sensors

Grip: Gamma Honeycomb Cushion

Billie Jean King's Eye Coach Junior Replacement Arm NRG2 Functions: Start / Stop andThings are not meant to last forever. Eventually your Eye Coach Junior arm will need replacing, and this is the part you'll need. This is for the junior version and will not work with the Pro adult model. Billie Jean King's Eye Coach Junior Replacement Arm Details: Arm includes replacement ball Replacement ball colour may vary Spring and Aluminum stem included attached Exclusively for Eye Coach Junior Product Code: EYECOACHARMJR