a straight line typically dark colored a ruler with numbers or measurements along the length a metal strip or edge along one side a handle at one end a handle at the other end a metal clip or holder at one end
rule which is a straight line rule which typically dark colored rule which is a ruler with numbers or measurements along the length rule which is a metal strip or edge along one side rule which is a handle at one end rule which is a handle at the other end rule which is a metal clip or holder at one end