Tone your arms and your core with some bicep curls while balancing.
- Grab two dumbbells and stand on an upside-down BOSU, making sure you've found your balance. If you're having trouble balancing, increasing the width of your stance can help.
- Turn your hands so the palms are facing up as you grasp the dumbbells, with your arms straight. Keeping your elbows close to your side, slowly raise and lower the dumbbells to your chest.
- Do 12 to 15 reps and repeat.