【Easily Check Workout Data】This upgraded ab roller features an LCD screen that accurately displays the number of repetitions and time in real-time. This allows you to track your workout data and adjust volume and intensity for maximum results. It's also USB rechargeable, providing enough battery life for multiple workouts on a full charge. 【Efficient Training】This ab roller is equipped with an automatic rebound function, eliminating the need for manual rebounding, reducing resistance, and improving training efficiency. It's easy to use, even for beginners. Furthermore, to meet the needs of advanced users seeking high-intensity training, the roller's design allows for a longer forward rolling distance and increased cumulative elastic force. This provides stronger resistance and enhances the effectiveness of abdominal training. 【Improved Stability and Comfort】This ab roller has a four-wheel design for increased stability. The arched support structure eliminates concerns about shaking or falling during exercise. The armrests are wide and thick, with non-slip and sweat-absorbent grips. This improves comfort during exercise, allowing you to continue training. 【Easy Assembly and Portability】Adopting a snap-on design, it can be set up in just 5 seconds. Even beginners can easily assemble it in a short amount of time. It doesn't take up much space, won't damage the floor, and won't bother those around you, making it convenient for home use. - Type: Ab Roller - Number of Wheels: 4 wheels - Features: LCD timer and count ・Some product information and images are taken from the manufacturer. We do not guarantee the specifications or images. ・As this is an unopened product, please use the manufacturer's support for any defects. ・Shipping will be in the condition shown at the end of the product images. The product box is treated as packaging material, so please understand. ・Shipping may be changed to "Rakuraku Mercari Bin" or "Yuuyu Mercari Bin". ・We do not issue receipts. ・Please only purchase if you agree to the above points. Thank you for viewing. Type...Ab Roller