Tennis Ball Trainer Self-study Baseboard Player Training Aids Practice Tool Supply With Elastic Rope Base Feature: 1.The base is made of high-quality plastic to feature sturdy and durable factor, while the rubber rope comes with high elasticity and durability 2.The base comes with the stopper that allows you to place the sand or water inside it to add the weight 3.The small ring aside can help you tie the string, while the concave part can place the tennis ball 4.This tennis trainer is lightweight, convenient, practical, easy to use, and can provide stable training support, contributing to single-player exercises. It can also improve your attention, athletic ability, and hand-eye coordination, and develop your interest in sports 5.The elastic band can be tied on the heavy objects or directly tied on the triangular area of the racket. So you can use it to do the practice simply and conveniently 6.A wonderful gift for your friends, family members, and kids who like playing tennis. And it can help you improve your steps, accurate control, and tennis skills in garden, park, and so on 7.It is suitable for various people, especially for beginners Specification: Material:Natural rubber,chemical fiber Elasticity:80-100cm Propulsion Deformation:0.20-0.25N Diameter:63.5-66.7mm Rubber Band Length:about 3.8 meters Theme:Sports Sports Type:Tennis Packaged:Opp bag Note: Due to the screen difference, the color may be a little different from what you expect, please allow it Packaged include: 1 x tennis trainer PLEASE NOTE: DELIVERY WITHIN 2-8 WEEKS AS MOST OF THE ITEMS ARE COMING FROM ABROAD. IF FOR ANY REASON I CANNOT SHIP TO YOUR LOCATION, I WILL CANCEL WITHIN 24 HOURS.