Check the listing for details. RIGHT ANGLE IRON BLOCK OAD 18" X 10-1/8" X 12" HOLE DIA 6-1/2" THICKNESS 1-1/8". Condition: Used. Listed at 300.00 USD. OAD 18" X 10-1/8" X 12". HOLE DIA 6-1/2". RIGHT ANGLE IRON BLOCK. SQUARE DIA 7". THICKNESS 1-1/8".