Grand Canyon 4” Hand Molded Ceramic Fiber Cannon Ball 8 PC Set - Black 4” CANNON BALL, 8 PC SET- BLACK The Cannonball Series features authentic casted pieces in three stunning colors and sizing options that can be styled simply for a minimalist look or mixed and matched to create a custom, contemporary aesthetic. Thoughtfully crafted for your endless viewing pleasure, our Cannonballs can be nestled in a bed of lava granules or crushed reflective glass to elevate both indoor or outdoor fireplaces and linear fire pits.