If you want to really thin your legs, you should do proper exercise instead of opportunistically using various small objects to improve it.

Leg beauty method:

Action 1: Lie on your side and lift your legs.

Lie on your side, with your forearm bent to support your upper body, your calf bent backward and your calf straight.

Keep your body stable and lift your thighs up until the peak of action stops.

Action 2: Kneel and kick.

Bend over, bend your elbows with your arms, kneel on one knee, keep your back straight, and keep your non-supporting legs close to your supporting legs.

Straighten the unsupported leg backward and upward, lift it to the top of the movement, and then bend your knees to recover.