This marker holder is able to hold up to 4 Expo dry erase markers. This pocket version measures 95mm long, 60mm tall, and 30mm wide. The design is recessed into the surface making it perfect to carry around in a pocket. My design makes sure to grab the cap, while still allowing for the removal of the marker cap if ever necessary. The marker holder comes equipped with 3 powerful rare earth magnets to make sure it sticks to any white board (or other steel surface). The magnets are flush mounted within the holder to make sure they do not snag anything while being transported. Available in a number of different colors and customisable with your name or even call sign. Does not come with any markers. More colors avalible upon request.