A 3D model of a height limit sign, featuring a red border, white background, black "2,7 M" text, and directional arrows, with a metal pole. It has clean, realistic design and is suitable for road safety, traffic management, and construction scenarios.

A 3D model of a traffic sign, featuring red border, white background, orange square, and black rail pattern and a functional, standardized aesthetic. It has low polygon count for clarity and is suitable for road traffic indication.

A 3D model of a pedestrian traffic sign, featuring a red circular border, white background, and black walking figure icon, with minimalist regulatory design. It has high detail, clean edges, and is suitable for road safety simulations, architectural visualizations. (类目纠正：原Other → Traffic Signs)

A 3D model of a traffic sign, featuring circular red-and-white design with a black bicycle icon and minimalist warning aesthetic. It has low polygon count, high detail, suitable for traffic regulation scenarios.