: Typically 253mm or 282mm in diameter and designated as "solid" rather than "vented" or "multi-piece".
If you are looking for a robust, "solid piece" of hardware for a Canon EOS camera, the most prominent options are precision-machined support plates designed for professional stability. Really Right Stuff L-Set for Canon EOS-1D X Mark III B&H Photo-Video-Audio Go to product viewer dialog for this item. eos buy online
: Retails for approximately $85 at B&H Photo-Video-Audio . 2. Automotive Replacement Parts (Brake Rotors) : Typically 253mm or 282mm in diameter and
2007 Volkswagen Eos Rear, Driver or Passenger Side Brake Disc, Natural Finish, Plain Surface, Solid, 5 Lugs, 281.94 mm, 2.0L 4Cyl, Pro-Line Series CarParts.com Go to product viewer dialog for this item. : Retails for approximately $85 at B&H Photo-Video-Audio
For those searching for "solid" mechanical parts for the convertible, "solid piece" typically refers to the non-vented rear brake rotors.