Never get bored doing crunches again by adding variety to your workout with a range of abdominal exercise products. Abdominal wheels advance your basic plank into a complex core exercises while still being individual to each person. You can roll out as far as is comfortable to you. Trunk blaster exercises are great for targeting your obliques and developing power through rotational movements. Abdominal slings are a great portable tool that can be used to hang your body off and perform movements with your legs, decrease the stability of your hands or feet while performing plank exercises.