ZPI MCR01 Color Mechanical Cap #BlueSKU45801685294460OverviewThe diameter has been increased to improve operability. A carbon ring has been attached to the exterior, which has succeeded in minimizing the weight increase that is a disadvantage of making the diameter larger.FeaturesBrandZPIUS $13.74 US $0 SKUQuantityPrice 4580168529446 0 US $13.74 Customer reviews and ratingsBe the first to write a review of this product!