This little desk threader will make threading your needles so much easier. With a push of a button your needle is instantly threaded. This little tool works with a variety of oval eye needles from fine to thick: .51 - .89 mm. It is not recommended for embroidery needles or needles that have a circular eye. It also comes with a built in thread cutter. This is a must have item for anyone who sews or quilts!