This is a clean river rock in 4 sizes:  3/8″-5/8″ to 2″-3″ This clean River Rock is very hard, dense rock with smooth surface real stone. Unless used for flooring, there is no particular need to seal the stone except to enhance the colors.

Clean River Rock – Pea Gravel - Earth toned approved river rock for playgrounds This clean River Rock is very hard, dense rock with smooth surface real stone. Unless used for flooring, there is no particular need to seal the stone except to enhance the colors.