REVERSIBLE SPRING ASSISTED CAM RISE HINGE, 10-1/8" LONG OD. X 5-21/32" WIDE. TO REVERSE REMOVE CAP AND PUSH OUT CAM, REPLACE CAM ON OTHER SIDE OF STRAP AND REPLACE CAP. STRAP HAS A HEX HOLE IN IT WHICH ACCEPTS THE STEM FROM THE FLANGE., NUMBER "1245" IS CAST ON STRAP~ NUMBER "1248" IS CAST ON FLANGE. 1-1/8" OFFSET DIE CAST ZINC POLISHED CHROME PLATED. Kason -1248-16112480000161248-0000161248-16