Lufkin O9300B 5/16-Inch x 300-Foot Super Hi-Way Nubian Tape Refill Nominal thickness .017-Inch Easy-to-read raised graduations Lines have a blank space at each end Extra foot before zero graduated right to left to 1/10ths and 1/100ths Balance marked every foot except last foot of each 100-Feet length, 100ths