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 CASTED ON STRAP~ NUMBER "1248" IS CASTED ON FLANGE. 1-3/8" OFFSET DIE CAST ZINC POLISHED CHROME PLATED. Kason -1248-24112480000241248-000024