Anti-Slip AB Roller Trainer with Phone Holder, Mat, and Timer Ideal for Abdominal Muscle Training Stable and Safe: The AB roller trainer features an anti-slip system with automatic return and braking technology. Synchronized movement and stable support ensure a safe and effective workout. Constructed from high-quality ABS plastic, rubber, and metal, it offers durability and quiet operation. Wide Double Wheel Design: Equipped with enlarged and widened double wheels for enhanced stability and safety. Reduces the risk of slipping or losing balance during use. Integrated Phone Holder: Convenient phone holder allows you to watch videos or listen to music while exercising, helping maintain motivation and enjoyment during workouts. Designed for Abdominal Muscle Training: This AB roller is ideal for strengthening abdominal muscles. The anti-slip construction makes it a reliable choice for daily exercise routines. Product Details: Material: ABS Plastic, Rubber, Metal Dimensions: 40.00 x 27.00 cm Package Includes: 1 x AB Roller Trainer 1 x Exercise Mat 1 x Timer