(2) Exercise muscle groups from multiple angles, brake safely and rebound smoothly.
(3) Thickened rubber tracks are anti-slip and wear-resistant, and the arrow texture shows fashion personality.
④ Multi-layer sponge groove handle, comfortable grip, non-slip and sweat-wicking.
(5) Triangular stable structure, stable movement and no rollover, scientific proportion and ergonomics.
⑥ Silent design, quieter abdominal movement.