The polished pebbles are a perfect addition to the bottom of your fish tank or aquarium, helping you create a beautiful underwater world! Natural stones: The pebbles are natural and have been lightly polished to have a smooth surface without sharp edges. They come in various shapes like round, oval, irregular, and more, so each river stone is unique. An alternative to mulch: The decorating stones are great for mulching garden beds, both inside and outside, as they help the soil retain moisture while offering good drainage. Great accent for crafts: These decorative pebbles can be used to decorate flower vases, fish tanks, turtle tanks, walkways, water features, exposed aggregate flooring or walls, and around swimming pools. Colour: Black Material: Polished pebbles Size: 2-5 cm Weight: 10 kg SKU: 3217190 EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands Compliance-safety@vidaxl.com