If your work involves measuring around the curves of buckets, barrels, boat hulls, turned legs, bowls, or anything that isn't a flat surface, these stainless steel rulers are a superb help. All are made from stainless steel 15mm wide and 0.5mm thick, allowing them to be bent so far that the 60cm and 1m iterations can bend back on themselves. Once measurements have been taken, they spring back to straight and are ready for your next job. Finished as they are with Shinwa's excellent hard chrome surface coating, they do not reflect glare and remain easy to read even under harsh light. These rulers are one sided, with the top edge measuring in whole-millimetre increments and the bottom edge measuring in half-millimetre increments. Made in Japan