If the quality of the product is not good, please contact us directly. If you have any questions or questions, please feel free to contact us.Colour Name:As Picture ShowDescriptions:This hand wheel is made of bakelite material,strong insulation and durable in use.These hand wheels are bored to the standard shaft diameter for their size,and are also tapped for a removable handle.The hand wheel comes with screw hole for easy handle assembly.Hand wheels are for any application where general or precise adjustments need to be made via a turning mechanism.It is widely used in industrial machine tools,such as milling machine,lathes,grinders etc.Specifications:Material: bakeliteColor: blackDiameter: about 12.5cmHandle height: about 3.5cmPackage Included:1pc x hand wheel1. Due to the light difference,the item's color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement.