What are the different types of square bollards available for commercial use?

Square bollards for commercial use come in various styles, materials, and functions. Key types include fixed, removable, retractable, and flexible bollards. Materials range from stainless steel, galvanised steel, and aluminium to recycled plastic and concrete. These bollards offer diverse applications like protecting pedestrians, controlling traffic, securing perimeters, and enhancing aesthetics in commercial areas. Some options, such as Barrier Group's bollards, provide durability and high visibility for optimal safety and functionality.