100-170mm Black Basalt Gabion Cobbles

Black Basalt Gabion Cobbles 100-170mm are premium basalt stones sourced from the Far East. Their natural charcoal grey colour deepens to a striking black when wet, adding contrast to landscaping projects. With a smooth rounded texture and high density, these cobbles are perfect for gabion baskets, erosion control, retaining walls and decorative features. Supplied unwashed, the true colour emerges after rinsing or rainfall.