Men’s Journal aims to feature only the best products and services. We update when possible, but deals expire and prices can change. If you buy something via one of our links, we may earn a commission. Questions? Reach us at shop@mensjournal.com.Sponsored content There are many different ab machines on the market. All of them claim to be the “best” for shredding your abs and increasing the strength of your core. But which ones really do the job? Which reviews can you trust? After careful research, we chose the Perfect Fitness Ab Carver Pro as our best overall ab machine. Not only does the Ab Carver Pro get overwhelmingly excellent reviews on Amazon, but it’s also one of the most affordable ab machines you can buy. A combination of value and effectiveness is what makes the Ab Carver Pro our best overall ab machine. It’s more than just your typical roller. With a wide, spherical wheel, the Ab Carver Pro lets you roll out from side to side as well as straight. This side-to-side maneuverability means the Ab Carver Pro forces you to utilize muscles in your arms, back, and your obliques, as well as your abdominals. This overall core workout is far more effective at sculpting your tors...