https://www.amazon.com/dp/B0BVZ3FPT2/ref=sspa_dk_detail_4?psc=1&pd_rd_i=B0BVZ3FPT2&pd_rd_w=lXSvR&content-id=amzn1.sym.88097cb9-5064-44ef-891b-abfacbc1c44b&pf_rd_p=88097cb9-5064-44ef-891b-abfacbc1c44b&pf_rd_r=7DYM0CZXKXE1XQR4DMYQ&pd_rd_wg=6jRUK&pd_rd_r=54c5a4b3-cb4c-428d-a5f7-e271b0b997a6&s=hpc&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWw&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUE2Mk5aUDk3VFRNVDQmZW5jcnlwdGVkSWQ9QTAzNjk2NzkxWjdLSzhPOFpINFBVJmVuY3J5cHRlZEFkSWQ9QTA3OTIxNThYVE04UUU4MVlYTlgmd2lkZ2V0TmFtZT1zcF9kZXRhaWwmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
跳绳
https://youtu.be/O4nB-U8A_hc