Chair dips

The chair dip targets the triceps, with your hands placed on a chair behind you.

Sit on the edge of a stable chair wedged against a wall, with your hands next to your hips, move your glutes off the edge into empty space, with your legs bent.

Lower yourself by bending your elbows backward to about 90°, then push back up until your arms are straight.

Check that the chair cannot slide, and keep your back close to the edge.