Koh-i-noor Koh-I-Noor Marker KOHS8502010BC Sold as 20/ST. Set of assorted markers features ergonomic triangular barrels each with a clip. Each pen has a tip that delivers a comfortable and colorful writing experience. This 20-color set is housed in a hard plastic easel travel case that sits up on your desk for easy access and folds down for storage.