Obliques, Core
Abdominals, Lower Back
Watch Tutorial
https://www.youtube.com/shorts/bLyQbCMqCJ8
https://www.youtube.com/shorts/ILy0DyTAhQo
https://www.youtube.com/shorts/c_tZeBLvFT8
Sit bench end, feet wide.
Place bar across back shoulders.
Grip bar wide.
Keep head/feet still.
Twist torso right.
Return center.
Twist left.
Alternate.