HighlightsAutomatic Rebound Abdominal WheelDetails*Features* - *Automatic Rebound Abdominal Wheel* - Designed with ergonomic double wheels,our automatic rebound ab machine can protect you from getting injured during exercise. The anti-slip wheels can hold up to 440.9lbs load,ensuring much stability and creating a safer fitness experience.*Full Body Workout* - Our abdominal exercise helps you train your abs,hip flexors,shoulders and various muscles of your back,which strengthens your core strength,burns calories and builds a healthy figure.*Considerate Ab Exerciser* - Only takes seconds to assemble. The handle is detachable and comfortable. Triangular support structures make you more reassured when exercising. Just prepare your pose,push forward and backward through regular training. Keep working out with our ab machine and get your firm abs in short period.*Portable Phone Holder* - Equipped with phone holder,our ab exerciser allows you to enjoy watching TV series when training. Mute de