1. Features<br> 1. Automatic Ab Roller: As an important fitness accessory for fine - tuning abdominal muscles, this roller is a good tool for creating attractive and well - defined lines. Its slightly round wheels with a smaller surface area allow for a relatively precise, challenging, and in - depth abdominal workout.<br> 2. Dual - wheel Design: The dual wheels have built - in springs, providing a certain amount of resistance and helping to prevent the roller from sliding during smooth movements. The automatic function can protect users from injuries during exercise, making it suitable for beginners.<br> 3. Exquisite Craftsmanship: The roller of this abdominal exercise equipment is designed to mimic tire treads. The multi - layer composite material offers good anti - slip and wear - resistant performance without scratching the floor. The bearing rollers are flexible and operate relatively quietly. A triangular structure is adopted to ensure stability, and there are anti - slip handles for a more comfortable use.<br> 4. Detachable Handles: The handles are easy to disassemble and install, which makes it convenient to carry. Users can use it at home, take it to the gym, or exercise in other places.<br> 5. Strength and Abdominal Exercise: The ab roller can help effectively exercise muscles and shape the abdomen, waist, back, shoulders, arms, and core. It is suitable for use at home, in the gym, or in the office. Users can exercise at any time and place, making fitness more efficient.<br><br>2. Specifications<br> 1. Material: ABS, PVC, PU<br> 2. Color: Blue, red, gray, blue - black combination, red - black combination<br> 3. Dimensions: 35×12×15 cm<br> 4. Weight: 1220 grams<br><br>3. Package Contents<br> 1. 1 roller