Feature●Mod Motor Gears (0.4M) - Tilta 2 Year Limited Warranty●Color: Black●Material: ABS plastic●Width: 0.4" (10mm) thick●Weight: 0.057 lb (25.85g)Description This motor gear can be used to replace the Nucleus-M motors 0.8 mod gear to allow you to use the motor on 0.4, 0.5, 0.6, 0.7 mod lenses.