Advantages of Precast Stairs and Landings Industry Leaders We Work With Building Systems Types of Stairs JJ Hook Barrier Traffic Safety Products Other Precast Products Quality Request a Sample Installing a Stair Galleries Links	Bollards and Bumpers   Precast bollards are UV stabilized, high impact polymer filled with concrete. They require no yearly maintenance and there is no deterioration.   These bollards are contractor friendly with easy installation, they require no secondary pour which will lead to less overall costs.   The precast concrete parking bumpers are made from the same UV stabilized high impact polymer as the bollards. Both the bollards and the bumpers are available in a variety of colors and can be used virtually everywhere.