1、Easy Measurement: The meter counter wheel ensures stable operation of the length meter and rolling encoder, allowing easy measurement of speed and position. 2、6mm Hole Diameter: With its robust construction and 6mm(0.24in) hole diameter, the meter counter wheel ensures low noise and smoother rolling accuracy. 3、Easy to Install: The encoder synchronous wheel is compact in design and light in weight, and can be quickly installed in minutes. 4、Aluminum Alloy and Silicone: The encoder synchronous wheel is made of aluminum and silicone materials with excellent craftsmanship and is very durable. 5、Wide Application: The meter counter wheel is guaranteed to be practical for bracket mounting and length counting of plates, tubes, strips, etc. 2 x Meter Counter Rolling Wheel Item Type: Meter Counter WheelMaterial: Silicone, Aluminum AlloyDiameter: Approx.500mm / 19.7in, 640mm / 25.2inHole Diameter: Approx. 6mm / 0.24inApplication: Suitable for bracket mounting and length counting of plates, tubes, tapes, etc.