This shift knob is made from walnut, known as one of the three major fine woods. The finish is natural wax. The thread size of the mounting part of this shift knob is 8 x 1.25mm. Please check the thread size on the lever side before purchasing. 《 Delivery Method 》 Free shipping, but it will be sent by regular mail (teikeigai-yubin). 《 Other Custom Orders 》 For custom orders with your desired size and materials, please contact "Kikoubou Craft Miya" through the inquiry form on their website. We will first provide an estimate, so please feel free to contact us. (Please note that exchanging messages about other products in the comments section of this product is prohibited by Mercari's rules.)