Pro Tapes Pro-Measurement Ruler Tape is a Kraft paper tape with adhesive backing which can be used as a repositionable ruler. It is a yellow paper tape printed black with markings. It is great for tough situations where a tape measure will not fit.
On the Imperial (English) version of the tape every 1/8 of an inch is marked (except on the tape labeled as no lesser increments - for that one only the 1 inch designations are marked) and it is numbered 1 through 12 at each inch designation. It then repeats itself every 12 inches. The 1 inch wide size gives you room off to the side to write, e.g. you can put a strip down and then mark off foot designations at every 12 inches - 1', 2', 3', ....
The Metric version of the tape is numbered 1 through 10 at each cm designation. It then repeats itself every 10 cm. There are alternating markings on the Metric tape - for the first 10 cm it is marked at every mm designation and then for the next 10 cm it is marked at every 1/2 cm designation (after the 1/2 cm markings there will be a perforation in the tape and a small gap (about 2mm) before the next run of mm markings begins).
Please note that because paper tape elongates a bit it will stretch over longer distances. It is perforated every 12 inches because for each foot it will be very close, but for longer measuring runs you may need to match it up with a metal tape measure to be sure when it is stuck down it isn't stretched at all or the tape can be un-perforated and each foot set down to match.