Have a 4 1/2" wide x 11 1/2" long high carbon bright spring steel blade for maximum life. Available in all notches (except AVF and KBC) and the FCA-FFA and FFA-FCA four-side notch combinations. For the FCA-FFA and FFA-FCA trowels, the first listed notch is for usual right hand use. LEFT HAND models (-LH and -LH-U) are available in the CTB, CWM, FCA, FFA, QT and RCA notches.