Features and Benefits:•Straight edge has easy reading in./metric scale graduations•Straight edge is made of heavy duty aluminum•Straight edge is 2 in. wide•8th and 16th graduationsThis 4 Ft. aluminum straight edge has easy reading inch/metric scale graduations that read in 8th and 16th. It has a 2 in. wide heavy duty aluminum frame that makes this tool more durable. Great for measuring surfaces up to 4 Ft. long.