Our products are custom-made to fit your instrument. After your purchase, we will send you an order form, so please fill it out. Thank you very much. With the release of Ver7.0, we will discontinue the sale of Ver6 (the type that extends towards the 1st string side). The low-string-height 1st string typically uses a side-swinging thumb technique, and to provide space for the rotary and starting point, we ultimately concluded that this design was the best, without the need for an extended structure. We are pursuing a natural landing feel with a "fully curved surface" and the use of hooking fingers with "moderate cornering and rounding." We aim to provide natural support to the extent that you can still play even when switching to a bass without the product attached. 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 desire it. ＜Important Notes＞ ・The shape is now even more seamless and smooth. ・You can now specify the depth length! (Please note that excessive length may reduce the slope.) ・Designs for wrench insertion points, etc., are also possible (not recommended for hex wrench insertion types). ＜About Various Specifications＞ ・Straight ends and length specifications are included in the basic options. ・If changing the width to 5-string, the straight-end model will be 2080 yen, and the curved-end model will be 2480 yen. ・If providing a wheel guard or truss rod access on the neck end, it will be a 2480 yen class. However, the upper limit is 2480 yen even for 5-string models. ＜Notes＞ ・The neck-end shape varies slightly depending on the manufacturer, but it's generally the same for 4-string JB basses. ・However, the height and fingerboard curve values vary among manufacturers. (The neck-end part often does not match the specification values.) ・We will measure the actual instrument and individually manufacture and deliver products with the appropriate thickness and curve values. We also offer custom-made finger ramps with various shapes and string height-following designs. Set discounts apply for combined shipping. We offer designs tailored to your playing style, so please feel free to contact us (＾＾)