This listing is for a handmade wooden shift knob. It is finished with natural wax and has no coloring. Due to the natural color and handmade nature, no two are exactly alike. You can have a shift knob that is uniquely yours. The thread size of the mounting part of this shift knob is 12 x 1.25mm. Please check the thread size on the lever side before purchasing. In addition, even if the thread size is 10x1.25, 10x1.5, 8x1.25, 6x1.0mm, or 12x1.75mm, it can be installed by using the following diameter conversion adapter (sold separately). << Diameter Conversion Adapter Sizes (sold separately) >> ① 12x1.25mm (knob side) → 10x1.25mm (lever side) ② 12x1.25mm (knob side) → 10x1.5mm (lever side) ③ 12x1.25mm (knob side) → 8x1.25mm (lever side) ④ 12x1.25mm (knob side) → 6x1.0mm (lever side) ⑤ 12x1.25mm (knob side) → 12x1.75mm (lever side) (←This adapter will be 23mm longer) 《 Delivery Method 》 Free shipping, but it will be sent via regular mail (teikeigai-yubin). 《 For other sizes and materials 》 We also accept custom orders for the thread size, material, and dimensions you desire. If you are interested, please contact us through the inquiry form on the "Wood Studio Craft Miya" website. (Please note that we do not allow communication about other products in the question section of this product.)