Fun Factory B BALLS UNO 黑色 7.3 cm 凱格爾球

The smooth black coating makes insertion really comfortable, and I can actually feel the weighted ball shift with every step I take around the house. Wore it during a grocery run and the subtle internal movement kept me aware of it the whole time.

Didn't expect the rolling weight inside to be this noticeable, but every time I shift my hips it gives a little nudge that plain vibrators never did. The silicone is smooth and easy to insert, and cleanup takes seconds.

I wasn't sure about the whole kegel ball thing at first, but the weighted ball inside actually rolls and shifts with every step, which is way more noticeable than I expected. Wore it running errands for an hour and it stayed comfortable the whole time.