RAFTER SQUARETempered steelBlack enamel finishWhite printed graduations and informationSolid, one-piece construction with the body 24" long and 2" wide and the tongue 16" long and 1 1/2" wide and square with the bodyGraduations of 1/8" and 1/16" are on the face side and 1/10", 1/12" and 1/16" on the back sideRafter information and an octagonal measuring scale on the front sideWood screw, pilot drill and board foot information on the back sideBrace measure information also on the back sideHanging hole on each squareInstruction manual included;