Compatibility: Specifically designed for the Genmitsu PROVerXL 4030. Upgrade your PROVerXL 4030 with ease by using this 65mm spindle mount, allowing you to install a different type of trimmer. High Quality: Crafted with precision from high-quality aluminum, delivering exceptional rigidity and durability. Stable and Reliable Performance: The spindle mount is engineered to securely hold the spindle, enhancing stability and minimizing noise during operation. Easy Installation: Effortlessly bring more options for your machine by simply loosening the four screws of the stock spindle, replacing it with this new spindle holder, and then tightening the screws. Dimension: Outside Dimension: 110 x 99x 35mm; Diameter: 65mm, Weight: 1.10010668738 Pounds, Manufacturer: Genmitsu