Koi is an informal name for the colored variants of C. Rubrofuscus kept for ornamental purposes. There are many varieties of ornamental koi, originating from breeding that began in Niigata, Japan in the early 19th century. Smart-Cut™ Technology Premium Quality: Crafted With Premium Blueboard And A Linen Finish For A Durable, Glare-Free Experience. Eco-Friendly: Manufactured Using Recycled And Responsibly Sourced Materials. This colorful puzzle measures 48 x 68 cm completed. Box size: 25,4 x 35,6 x 6 cm. Ensuring a snug fit and hours of relaxing enjoyment.