2-HOP Quick Step Trainer Tennis Fast Step Exerciser Artifact Auxiliary Equipment Single Beginner Child

2-HOP quick step trainerPut you in the right posture of preparationImprove reaction timePrinciple of actionTennis requires constant movement and pacing!When you put your weight on the forefoot, the kinetic energy of movement is naturally generated! The reaction will also improve!When a player uses the 2-HOP Step Trainer, if the center of gravity is pressed against the heel, the trainer will make a buzzing vibration sound as a reminder, you need to adjust the center of gravity and exercise preparation posture!How to usePut the trainer anyway on the inside of the sneakers against the heel, the logo is facing up, and put on the shoes.In preparation, movement, and batting phases, the center of gravity falls on the forefoot, and the heel is slightly raisedThe benefits: faster reaction, fast movement, and more effective power transfer!Frequent question: Players often need to be reminded if they are in maneuvering or not!Solution: This step training aid is very targeted! When your body habitu