THIS IS A GREAT LOOKING 44 TOOTH 110 BCD CHAINRING. THIS IS BRAND NEW, NEVER INSTALLED. THIS WILL WORK WITH SINGLE PIECE CRANKS AND 3 PIECE CRANKS. THE CHAINWHEEL IS STEEL. THE CHAINWHEEL IS ABOUT LITTLE BIT UNDER 7-1/4" INCH WIDE, THE BOLT HOLE TO HOLE IS 2-3/4' INCH.