The DaYan TengYun V3 M 3x3 is a great leap forward for DaYan's 3x3 design. This one uses tension/compression nuts that attach directly to the core. There are over 60 unique settings on the DaYan TengYun V3 M meaning there is a perfect fit for every turning style! If you're looking for something new, give this new flagship from DaYan a try!