Outsole: Vibram rubber outsole provides high-level traction and durability

This lightweight

2-12 second ball feed rate

Increase spin and control on the court from the co-polyester fibers

and a random oscillation

Lobster Elite Grand Four Machine Type_Kids' Squash Racquets Outsole: Vibram rubber outsole providesThe Lobster Elite Grand Four Machine is the world's most advanced battery operated portable tennis ball machine. The Elite Grand Four offers unrivaled full random triple oscillation. This revolutionary design allows the machine to throw balls throughout the court spectrum, mixing up speed, spin, trajectory and oscillation. Triple oscillation allows the machine to oscillate vertically and horizontally, allowing for random shots simultaneously.