1 hula hoop, you must choose the kind of double-sided sit-ups with weight, and you must be sideways, and the effect of front sit-ups will be halved. Mountain bike is definitely the best, and my stomach and thighs are getting thinner. Haha, my mother has been insisting, and it will take effect in a week. I tested all three of them myself. Haha, it's summer. Let's go by bike.

Adopt it