Our interlocking permeable pavers are made using recycled HDPE plastic and injection molding technology. The paver base is designed for simple installation and works well as gravel pavers to support an outdoor basketball court, driveway, parking area, or pathway. Pavers are a great alternative to concrete or asphalt underfloor sports installations. https://modutile.com/product/gravel-pavers-outdoor-basketball-court-base-24x24/