Four-wheel independent suspension spring: The independent suspension system makes the off-road frame more flexible, has anti-vibration function, and protects the body electronic parts; the softness and elasticity can be adjusted according to the road conditions. More stable under various obstacles. Anti-slip TPR tires: 4x4 Crawlers tires are made of high-quality rubber materials, rubber vacuum tires, concave cam pattern, excellent grip and anti-slip performance, without worrying about road slippage. Bring powerful conditions for the handling and driving of off-road climbing vehicles.