【Size And Weight】:The main image shows two states of gravel: dry and wet. The color is brighter and the appearance is better in the wet water state, These natural decorative river rocks measure approximately 3 to 4 inches and weigh 20 pounds per package. They are round and smooth mixed color river rocks 【Natural Mixed Color River Rocks】: Our Natural mixed Color stones are all natural and of high quality. These river rocks are non waxed and very environmentally friendly. The black pebbles are manually selected, cleaned, and polished, then packaged and shipped to our customers 【Decorative River Rocks for Landscaping】: This 40LB natural decorative river rocks is very suitable for use in gardens, such as garden paving, fountain decoration, flower bed decoration, and lawn surrounding decoration. This heavy packaged stone is also very suitable 【Wide Range Of Use Scenarios】: Natural mixed Color pebbles can be used for indoor and outdoor home decoration, can be used to decorate vases, fish tanks, also very good outdoor fountain decoration. These stones are very suitable and beautiful for decorating the front lawn and yard of your home. Smooth and rounded stones will not scratch your feet, and they are perfect for garden paving 【Note For Purchase】: We these cobble black pebbles are natural, only stone and wax, no other extras. The stones may be broken during transportation, you can contact us, we have a perfect after-sales service and can provide you with an exchange River rocks are natural and non-toxic, and no dyes are used to produce these pebbles. Only narural rocks and pure paraffin,and the color will not fade after a period of time. Before adding rocks to the fish tank,garden,river rocks for landsacping,pebbles for plants