动感单车、哑铃、弹力带，均可小刀，50 Columbus自取：

【动感单车】 $100 可辅助搬运
型号为JOROTO X2
https://www.amazon.com/gp/product/B07Q2697YN/ref=ppx_yo_dt_b_asin_title_o05_s00


【可调节哑铃】2×20LB $40
https://www.amazon.com/gp/product/B08ZNBJVWJ/ref=ppx_yo_dt_b_asin_title_o07_s00


【弹力绳、弹力带】见图三 $5