They seem to be good, accurate, quality and the case is very nice for keep sake. With this purchase, I primarily needed the larger 4 inch micrometer for working on Harley Davidson pistons. Most set only have the 3 smaller one, which only goes up to 4 inches. I needed to be larger than four inches for this particular project. Arrived in a timely manner, quickly. The price was absolutely reasonable. And it did the job for me. Thank you for your product.