Biceps
Forearms
Watch Tutorial
https://www.youtube.com/shorts/1KPl0_MuSNE
https://www.youtube.com/shorts/X3XR0qUM4-I
https://www.youtube.com/shorts/YoN4StqQGto
Stand tall, hold bar underhand wide grip.
Elbows tucked.
Curl bar up.
Upper arms still.
Squeeze biceps.
Lower slowly.
Repeat.