Forearms
Watch Tutorial
https://www.youtube.com/shorts/lNfFKTYZc5w
https://www.youtube.com/shorts/PunOfGrQnsY
https://www.youtube.com/shorts/8eaf4CFxP8s
Sit bench edge.
Hold bar overhand grip.
Rest forearms on thighs, wrists over knees.
Lower wrists.
Curl wrists up.
Keep forearms still.
Lower slowly.
Repeat.