Anti-Slip AB Roller Trainer with Phone Holder, Mat, and Timer – Perfect for Abdominal Muscle Training Stable and Safe: The AB roller trainer features an anti-slip system and automatic return and braking technology. The synchronized movement and stable support ensure a safe and effective workout. The robust construction made of high-quality ABS plastic, rubber, and metal guarantees long durability and quiet operation. Wide Double Wheel System: The design with enlarged, widened double wheels provides additional stability and safety. The risk of accidental slipping or losing balance is minimized. Integrated Phone Holder: With the practical phone holder, you can listen to music or watch videos during your workout, keeping your motivation up and making your training more enjoyable. Optimized for Abdominal Muscle Training: This AB roller trainer is ideal for anyone looking to strengthen their abdominal muscles. The anti-slip design makes it an essential tool for your daily workout. Product Details: Material: ABS Plastic, Rubber, Metal Size: 40.00 x 27.00 cm Package Includes: 1 x AB Roller Trainer 1 x Exercise Mat 1 x Timer