This tail is made up of 2/3 Black and 1/3 Silver hair. It gives the illusion of a dark grey.
For reference, the tail on the Left side in the image is 2/3 Silver and 1/3 White (Light Gray) and this tail is on the Right side.
*If you are interested in purchasing this tail, it is highly recommended to submit a photo of your horse's tail for matching purposes, otherwise returns/exchanges are not accepted.