I am using a yoga ring.

There are days when my legs feel particularly stiff and painful. On those days, if I take out a yoga ring, put it on my calves, and move around for a short while, the swelling and pain in my calves disappear completely.

I sometimes do my makeup in the morning with the yoga ring on my calves. When I get dressed after finishing my makeup, I notice a slight difference in the circumference of my calves before and after using the yoga ring, perhaps because the swelling has gone down.

I heard that people suffering from leg swelling or venous circulation mainly use yoga rings.