Automatic rebound This abdominal roller uses advanced automatic rebound technology and is equipped with a 50 pounds thick elastic silicone rope, providing strong rebound force to help train your muscles. Suitable for beginners or experienced athletes. Stable and safer The flat design offers more stability than traditional abdominal roller wheels. An enlarged surface distributes force for stable, controllable movements and reduces the risk of tipping and swinging. Abdominal roller board Exceeds traditional rollers with multifunctionality to meet different exercises. Not limited to abdominal training; it fully trains the core, legs and back muscles. Designed for exercise Made of environmentally friendly PP material. Very suitable for family exercise and basic strength training. Use scenarios - Home family workouts and personal training sessions - Core, leg and back strengthening for runners and fitness enthusiasts in a gym or studio - Quick warm-up or low impact exercise during office breaks or travel