Gorgeoustar Tennis Trainer Rebound Ball - Solo Tennis Self-Study Practice Trainer Gear - Complete Tennis Rebounder Tennis Training Equipment Kit with 2 Elastic Ropes 2 Balls

The perfect portable tennis training aid. Simply hit the ball and it comes back to you! ---?? Fill the base with water or sand and it instantly becomes heavy enough to hold the unit in place. Non-skid pads underneath help keep it stable. ---?? Unwrap the cord, hit the ball as hard as you want, and the ball bounces back to you. The harder you hit the faster the ball is rebounded to you. Features:     1.Maximize your speed and cardio?the perfect trainer for practicing all your tennis skills     2.Builds quickness, hand-eye coordination, and stamina     3.Sets up virtually anywhere and stores easily: cord and tennis balls fit into base     4.Practice on your own without needing a ball machine or a wall     5.Rugged, non-slip rubber base for indoor/outdoor practice     6.Durable 15-foot Kinetic Cord stretches up to 30 feet How to use:     1.Place water, sand, or any weight on the baseboard of the training equipment.     2.Adjust the elastic rope to the length you want.     3.Hit the ball as hard as you want, and the ball bounces back to you. Specifications:      Material: ABS plastic      Color: Orange      Base size: 9.5 x 8 x 2.7 inches      Base weight: 0.6 lbs (empty)      Applicable age range: > 7 years Package includes?     1 x Tennis Trainer Base     1 x Elastic Cord     1 x Practice Ten