ubbink ubbink vijvergrind 15 kg 4 6 mm 1373126This Ubbink pond gravel serves both practical and decorative purposes. It's the ideal choice if you want to give your pond a natural look and enjoy a good view of your fish. The washable pond gravel does not contain any substances that promote algae growth and is suitable as a substrate for pond and plant shelves, for concealing pond edges and also for covering the soil in planters. Particle diameter: approximately 4 6 mm Material: gravel Content: 15