Keep your frequently used markers neat, organized and all within easy reach with the premium Polar Whale Premium Marker Storage Organizer. Includes 1 black high density foam organizer (with pockets to hold up to 72 markers). Compatible with Copic Sketch and Ciao markers, but also perfect for most markers, pens or pencils (up to 17mm wide). Markers can be stored either horizontally or vertically; Deep design lets specialty art markers rest in their ideal horizontal position. Made from elegant lightweight yet durable high density waterproof black foam material. This beautiful organizer is non-slip, non-scratch, anti-rattle and super-easy to clean (rinse it off, or wash it in the top rack of your dishwasher). Measures approximately 12" x 6.25" x 4", with 17mm wide slots.