Ab Roller Wheel - Made of durable ABS material that withstands the stress and pressure of ab training and helps maintain stability during long sessions. Foldable and Portable - Foldable design for easy storage; lightweight and compact; simple to carry and set up. Stable to use at home, in the office, or in the gym for versatile on-the-go workouts. Ab Exercise Board with Timer - Built-in real-time timing sensor with precise timing and countdown functions. Intelligent control of training time and training volume. Includes a timing screen, reset button, and timing button for convenient tracking. Safe and Stable Base - Non-slip bottom design prevents slipping, enhancing safety and stability during exercise. Use scenarios - Home workout: integrate core training into daily routines for better stability and strength. - Office breaks: perform quick core sessions during breaks or lunchtime. - Gym or travel: take it on the go for effective ab training away from home.