A Clever, Low-Tech, No-Robots Design for a Passive Tennis Partner

Ulpan Dimas’ CourtSense Tennis Rebounder

A clever inventor named Ulpan Dimas invented this CourtSense Tennis Rebounder.

Unlike the ball-volleying robots now on the market, Dimas’ low-tech invention requires no electricity and no tennis court:

Dimas sells the CourtSense for $295 on eBay (plus shipping, and be aware that Dimas is in Indonesia).