Material and Features: 1. Material: Primarily made of stainless steel, such as 304 or 316 stainless steel, which are widely used in outdoor environments due to their excellent corrosion resistance and strength. 2. Features: 1) Corrosion Resistance: The stainless steel material can withstand most chemical corrosion, ensuring the collision posts can be used long-term in harsh conditions. 2) High Strength: Stainless steel has sufficient strength to bear accidental collisions from vehicles, effectively protecting road safety. 3) Aesthetically Pleasing and Durable: The smooth surface of stainless steel is easy to clean and can maintain its appearance over time.