This is the dry surf specification joystick lever from Seimitsu Industry. Below is a quote from Seimitsu Industry's website: This is a new sensation joystick [LS-40D-01] that uses Harves Corporation's dry surf instead of silicone grease. Harves's dry surf is a product that hardly becomes sticky and is difficult to fall off, which enhances durability and reduces the phenomenon of getting greasy when customizing. The basic components are all from the LS-40-01, but it uses a dedicated color base (translucent). *Note: A replacement shaft for LSQ-40 can also be installed. You can choose from three types of base plates, and it comes with a clear shaft cover and a 12.5φ black lever packing. *The MS base specification will include a base seal as a bonus for the first 777 customers (including purchases from distributors). *The photo shown is the LS-40D-01-MS base. *Please note that the lever ball is not included. This is a commercial product, so there are no instruction manuals or packaging. Please purchase only if you fully understand the product characteristics. Our store does not provide any installation support.