Four adjustable resistance levels - Four resistance levels to suit different training goals and fitness levels. Choose from the levels to gradually increase intensity, making it suitable for beginners and professionals of varying heights and strength conditions. Smart LCD display and folding structure - The handle features a smart LCD display that shows count, time, calories and speed. This helps you track progress and monitor your fitness status during workouts. - The ab machine folds for easy storage, supporting a tidy and space-saving home setup. Sturdy and heavy-duty iron frame - Built with a sturdy iron frame for long-lasting durability. The solid iron construction offers a reliable and steady training experience with a weight capacity of 220 lbs. Professional ab machine for full-body benefits - Designed for targeted abdominal training and core development, while also assisting with overall muscle building. Four flexible wheels ensure smooth and stable movement to elevate your ab and core performance. Use scenarios - At-home beginner routine: Start with lower resistance and shorter sessions to progressively build core strength, using the LCD display to monitor progress over time. - Core-focused workouts for athletes: Use higher resistance to challenge the core and complement other strength training, aiming to improve stability and overall core power. - Small-space home gym setup: Foldable design allows easy storage when not in use, making it suitable for apartments or rooms with limited space while still enabling effective abdominal workouts.