This is a butt box and double anchor base compatible with Daiwa's Kue rod, Genpao Betsu-Ate Kue. Basically, it can be used with only one anchor, but if the installation location has weak rock quality such as sandstone, using a double anchor will provide stronger fixation. (When installing with only one hole, use the smaller hole) The base is threaded, allowing for slight height adjustment. The adjustment range is not large, but even slightly raising or lowering the rod butt can raise or lower the rod tip to some extent. *Caution: Even when raising the height, always screw in at least 8 rotations so that the head of the screw protrudes from the joint. If the screwing is insufficient, there is a risk of detachment. Manufacturer: FMW Material: Super Duralumin Bolt holes support M10, 3/8 to M12. ■About the Material Made of super duralumin, a lightweight, high-strength material also used in aircraft. The specific gravity is only 2.8g/cm3, less than half of stainless steel's 7.93g/cm3, making it lightweight. Furthermore, the tensile strength is approximately 570N/mm2 for super duralumin, which is higher than stainless steel's approximately 520N/mm2. Each item is produced by cutting from the material, so the cost is inevitably high, but there are no welding points, reducing the risk of breakage. → #Other FMW products are here [Ishidai, Ara, Kue fishing, Bukkomi fishing, bottom fishing, piton, Ishizuki BOX, rod rest]