Roland Sands Design Black Ops Nostalgia Derby Cover 0177-2011-SMB Machined from aluminum to exacting standards Design matched to the RSD Nostalgia line of products Easy bolt-on installation Choice of chrome-plated, black anodized, gloss black, polished, Black Ops or Contrast Cut finish Contrast Cut finish starts with a polished derby cover that has been black anodized, then hand-sanded for a unique handcrafted look