Our products are custom-made to fit your instrument. After your purchase, we will send you an order form, and we kindly ask for your cooperation in filling it out. m(_ _)m With the release of Ver7.0, we will be discontinuing Ver6 (the type that extends towards the 1st string). We have concluded that this design is optimal for the 1st string with its low string height, which requires a side-sweeping thumb technique, and by providing room and a starting point for rotation. We pursue a natural landing feel with "fully curved surfaces" and the use of finger rests with "appropriate edge contact and rounding." We achieve natural assistance that allows you to play even on a bass without the attachment. Regarding Ver5 (the type with a slit on the 1st string side), we will continue to offer it as there are a certain number of customers who request it. <Notices> - The shape is now even more seamless and smooth. - You can now specify the depth! (Please be careful not to make it too long, as it may reduce the slope.) - We can also design features such as wrench insertion holes (not recommended for hex wrench insertion types). <Specifications> - Straight ends and specified lengths are included as basic options. - If you change the width to a 5-string model, the price will be 2080 yen for the straight end model and 2480 yen for the curved end model. - If you require features such as a wheel recess or truss rod access at the neck end, the price will be around 2480 yen. However, the maximum price for a 5-string model will also be 2480 yen. <Important Notes> - Neck end shapes vary slightly by manufacturer, but they are generally the same for 4-string JBs. - However, height and fingerboard curve values differ among manufacturers. (The neck end may not always match the specified values.) - We will measure your instrument and produce a custom-made product with the appropriate thickness and curve values. We also accept custom orders for various other shapes and finger ramps designed to follow string height. A set discount is applied for combined shipping. We propose designs tailored to your playing style, so please feel free to contact us! (^^)