Five layers of sound insulation: noise-reducing and wear-resistant, including a non-slip layer, a reinforcement layer, a shock-absorbing layer, a sound-absorbing layer, and a thickened layer.Automatic design: Automatic technology, intelligent self-tapping auxiliary braking, and a built-in braking system.Double-wheel design: This ab roller features two wider front and rear wheels for smooth rolling and better control, ideal for beginners.Excellent workmanship: Made of sturdy and environmentally friendly material with a sponge handle, this rebound roller is non-slip, sweat-absorbent, comfortable, fade-resistant, durable, and quiet, ensuring a long service life.
