This is a Fusion HELIX CF250 Plated Pulley Case. It is easy to custom, just slip it over the original pulley case. There is a double-sided tape on the back of the product, so it is ready to use once you receive it.
As this is an imported product, there may be some paint sashes (cowls, etc.), dullness of the plating, and small scratches during transportation. Please note that the product cannot be exchanged as a general rule. Also, instruction manual is not included