This rubber structure is designed to be attached with a parking barrier for reserving a parking space. The attached structure helps protect the barrier when it's folded down to prevent vehicles from passing through. It includes 2 polypropylene anti-friction rings. The high-visibility yellow barrier comes with 2 class 1 red reflective strips. It is equipped with a triangle lock and an 11mm firefighter key. Stainless steel fasteners are provided to attach the barrier to the structure. Ground fasteners are optional (8 attachment holes).