About this item Resistance bands were added inside the track of our posture flex ab roller to provide assistance when curling. This design allows for better control of the movement, enhances training results, and also reduces stress on the joints, making it more suitable for beginners. Kneeling pads included with each flat Ab Roller provide extra comfort and support. Designed for users who want to take the pressure off their knees during their workout without having to purchase an additional one. A timer is also included as well as a beginner's movement guide. The flat panel design provides more stability than a traditional AB roller. You don't have to think about how to keep your balance and whether there's a risk of breaking it due to the large body weight, meaning that you can fully concentrate on your exercise. The flat design also opens up the possibility of more exercise. In addition to normal use to tone your abs and arms, you can also step it under your feet to work your leg muscles and your entire core. Thanks to its flat design, it folds up into a full cube that's easy to tuck under a bed, between a couch and a wall, or into any other crevice, and it's completely installation-free, so you can open the package and turn on the movement. › See more product details