These plugs are black water buffalo horn with caramel horn marbling.
The color is a tan caramel, but since the horn is translucent the color shows up a little bit warm in the photo.
Larger pair shown in photos for color example.
Color and marbling will vary from pair to pair, no two pairs are alike. Very limited inventory.
Size- 9/16" / 14mm
Length- 7/16" / 11mm
Material- Water Buffalo Horn