Extend the life of your Swingball with this replacement ball & tether. This adjustable tether can be used with the Classic Swingball, Classic All Surface Swingball, Pro All Surface Swingball, Ultimate All Surface Swingball & Championship All Surface Swingball. This high quality tennis ball is easily fitted. Tether measures 1 metre 40cm. Adjustable tether Quality tennis ball Easily fitted Certified original replacement Ages 6+ years