I'm not sure how to use it. It was given to me. I have many other items for sale too ☺︎ ▶▷▶ #rin's shop ----------------------------- ✔ Immediate purchase without comment is welcome✩*⋆ ✔ Midnight/early morning silent purchase OK! ✔ Bundle discount, repeat customer discount, follow discount, feel free to comment ♡‪ ̖́- ✔ All items are free shipping ◎ Since this is a personal inspection, there may be errors in the description. The actual images are correct (*ᵕ ᵕ)⁾⁾ Anonymous shipping is not available. ----------------------------- 53/52 89 MAJORMENCH 1 set Badminton Trainer Badminton Rebound Trainer Shuttle Badminton Indoor Practice Badminton Solo Play Rebound Shuttle Badminton Cell 17391500