Features: Designed by Denis Simonutti, the Radius features a radical lock that takes major strides in the directions of safety, ease of use, and fidgeting. To open, use the stud to rotate around the pivot, opening the blade. To close, just push down on the stud, and rotate it back. The Radius is a statement of a modern Italian knife that will bring a smile to your face each time you open it! If you're interested in viewing more Radius folding knives, we have models with different blade finishes, handle materials, and blade steels.