Material: Aluminum + polyurethaneColor: Green & SilverInner hole size: 6mmPerimeter: 100mm1.Use with rotary encoder to measure velocity and position2.It have high resolutionPackage include:1* Encoder wheelOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
