The Keeshond (/ˈkeɪshɒnd/ KAYSS-hond, plur. Keeshonden) is a medium-sized dog with a plush, two-layer coat of silver and black fur with a ruff and a curled tail. It originated in Holland, and its closest relatives are the German spitzes such as the Großspitz (Large Spitz), Mittelspitz (Medium Spitz), Kleinspitz (Miniature Spitz), Zwergspitz (Dwarf-Spitz) or Pomeranian. The Keeshond was previously known as the Dutch Barge Dog, as it was frequently seen on barges traveling the canals and rivers of The Netherlands. The other important marking is the 'spectacles,' a delicate dark line running from the outer corner of each eye toward the lower corner of each ear, which, coupled with markings forming short eyebrows, is necessary for the distinct expressive look of the breed. Keeshonden tend to be very playful, with quick reflexes and strong jumping ability.