Quick view Add to Wishlist SPI 1X2X12A4PL 12" Long x 2" High x 1" Thick, Black Granite Four Face Parallel 12" Long x 2" High x 1" Thick, Black Granite Four Face Parallel 0.00005" Parallelism, Sold as Matched Pair MSRP: $752.88 Add to Cart The item has been added Compare