A measure of length equal to one-sixth of a cubit or just under 7.6 centimeters (three inches) in length. The fingers, up to four (Jeremiah 52:21), made a handbreadth; three handbreadths made a handstretch or span (Exodus 28:16).
Handbreadth
From Tyndale Bible Dictionary, adapted by Mission Mutual. CC BY-SA 4.0.