Hikeen Premium Tennis Trainer Rebound with Metal Base,Portable Solo Tennis Trainer Set with 3 Highly Elastic String Balls,Tennis Practice Equipment for Adult Kids an Beginners - Black

This tennis trainer features a durable metal base and three highly elastic, abrasion-resistant tennis balls. It includes a 13-foot stretch cord for realistic hitting.

• The description claims the tennis balls are 30% more highly elastic and abrasion-resistant than basic ones.
• The description claims the stretch cord can withstand high-intensity training.