Shape: LAVA with hole
No pointed particle shape, small resistance to water flow, not easily blocked,
uniform distribution of water and air, rough surface
Color: Natural Red / Natural Black
Size:10-20cm,5-8cm,3-5cm,1-3cm,1-3mm,3-6mm,20-40mesh,40-80mesh,80-120mesh,200mesh,352mesh
Application: Flooring, Paving, Water purity, aquarium, fire pit, fire bowl, flower arranging, landscaping etc..