Black & White River Rock (3/8″, 3/4″, 1.5″) Category: Decorative Rock Description Description Smaller decorative river rock. Very nice in decorative flower bed areas and water features. Related products Rainbow Pebble (3/4″) Read more Rainbow Cobble (4″ – 8″) Read more Rainbow Cobble (8″ – 16″) Read more Rainbow Pebble (3/8″) Read more