South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. The Gakgung bow is a traditional Korean bow crafted with only natural products and nowadays used in sports archery. Kwon Yeong-Hak still crafts his bows in the traditional way, carrying on a four-generation family business. The Gakgung bow, of which Kwon is one of the last remaining artisans, is unique to Korea, and is constructed with a variety of materials, including water buffalo horn, oak, bamboo and cattle spinal sinew. A ban on the import of water buffalo horns has put the Gakgung tradition at risk. (Photo by Jeon Heon-Kyun/EPA)

A view of a bow wrapped with a rope during the production process of South Korean traditional bow artisan Kwon Yeong-Hak in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

Tools for making a traditional bow are on display at the workshop of South Korean bow artisan Kwon Yeong-Hak in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

Materials used to make a traditional bow (L-R) horn of a water buffalo, bladder of a croaker, spinal sinew of cattle, mulberry tree, oak and bamboo are on display at the workshop of South Korean bow artisan Kwon Yeong-Hak in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

A view of a finished bow of South Korean traditional bow artisan Kwon Yeong-Hak that has not been strung in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)

South Korean traditional bow artisan Kwon Yeong-Hak works on a bow in his workshop in Yecheon-gun, Gyeongsangbuk-do, South Korea, 26 February 2015. (Photo by Jeon Heon-Kyun/EPA)