无绳跳绳建议买多少克的？
不想上班的小王 If you want something closer to the included weight, it is useful to know that 450 grams could mean the total weight of both balls and handles.
不想上班的小王 
不想上班的小王 If you want something closer to the included weight, it is useful to know that 450 grams could mean the total weight of both balls and handles.