10x1.25mm Thread 5 speed Round Ball Type-R Shift Knob in Black Billet Aluminum for Mazda 3 Miata MX3 MX5 MX6 Eunos Prot&eacute;g&eacute; 5 323 626 Mazdaspeed JDM VMS Racing Round Ball Type-R Style, 5 Speed / 10x1.25mm Thread Pattern Brand New. Never Used. Never Installed. Weight: 6.1 ounces, Diameter: 2 inches, Height: 1.75 inches Made to Manufacturer Standards for easy Installation. NO drilling or tapping required. Shift Knob is 10x1.25mm and Might Fit Other Brands of Vehicles with same thread and shift pattern. Unique, Locking Nut system. Made from one piece of solid Aircraft-Quality T-6061 Billet Aluminum and Precision-Machined for a firm, reliable feel against your palm that results into positive shifting.