Here is another smart exercise tool that helps you focus on toning your core muscles. This Smart Ab Roller Wheel has a LED display to show calories, reps, and other useful info. It measures 5.5″ wide and features easy-grip handles. You can use it to work your abs, shoulders, and back.
You may also want to see:
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.