Enhance the stability and durability of your driveway with these eco-friendly plastic grids. Each pack contains 12 polypropylene gravel grids that are easy to mount and stackable, making installation a breeze. The frost-resistant and UV-resistant features guarantee that these grids will withstand harsh weather conditions. These gravel grids are also suitable for building base grids, grass grids, and parking grids. Plus, they require no maintenance, making them a cost-effective solution. With a size of 500mm x 500mm, these black grids are perfect for reinforcing drives and other outdoor areas. Invest in these reinforced mats today and enjoy a stable and long-lasting driveway.