THIS ITEM IS THE DORIAN TOOL ITSN-434 SHIM SEAT, PROVIDED IN A 10-PACK. THE COMPONENT FEATURES A TRIANGULAR SHAPE WITH A NEGATIVE RAKE. ITS DIMENSIONS INCLUDE AN INSERT INSCRIBED CIRCLE OF 1/2 INCH (0.500 INCH), A THICKNESS OF 3/16 INCH (0.1875 INCH), AN APPROXIMATE LENGTH OF 1/2 INCH, AND A RADIUS OF 1/16 INCH (0.0625 INCH).