KAISERCRAT-Beyond The Page: Marker Storage Unit Kit. Use your own creativity and embellishments to turn this storage unit into a showplace for all of your markers. The 1/4-inch wide MDF is a blank canvas waiting to be transformed and customized to match any decor. The 13x12-1/2x4-3/4 inch assembled case has nine 2-3/8-inch round openings; twenty-seven 5/8-inch oval openings and one drawer. Assembly required; embellishments and markers not included.