Size .017"  thick 1 1/2" x 3/4" This is a thicker blade and recommended for use with the KuttO™ Junior #25, but can also be used in t he KuttO™ Master #20 (for shorter exposed length), and the KuttO™ Aluminum #27. As reference, this blade is almost twice as thicker as the standard blade in the KuttO™ Junior #25 (.017" thick vs .009").