48 x 4 Ball Can Championship Extra Duty Tennis Ball Size:OS -Â Front zip pocket

- Front zip pocket

Curved Lens Technology for expanded field of vision allows the swimmer to sight walls and the competition without altering head position

With strap bracket to mount it almost everywhere on the bike

Its body-hugging fit cuts a clean silhouette for rides long and short

ideal for amateur cyclists

48 x 4 Ball Can Championship Extra Duty Tennis Ball Size:OS -Â Front zip pocketExtra Duty ideal for longer play on hard court surfaces. Exclusive Dura Weave felt from Wilson provides greater durability and improved performance. Ideal ball for all levels of tournament and recreational play USTA and ITF Approved Product Dimensions: 28. 7 x 7. 11 x 7. 11 cm; 21 Grams