The tennis trainer is make of soft ,which is light weight,enduring,and easy to carry and store. Stable base ensures and prevents tipping. Suitable for various surfaces,both indoor and outdoor. The spherical grooves design fits perfectly with the tennis ball. Practical to use. It is suitable for single tennis training,even if there is none partner to play with,you can practice at yourself. By continuously using this trainer,you can improve reaction speed,hand eye coordination,and hitting accuracy,enhancing control over ball.