Double Layers Numismatics Pattern（DKGB), Size: 304.8*304.8*16.5mm 
                        Edge: 152.4*50*16.5mm, Corner: 50*50mm, or Edge: 150*100*16.5mm, Corner: 100*100mm

                        Recommend Application: Multi-functional sports court, basketball court, volleyball court, badminton court, etc.