Stores up to 20 markers, highlighters or other long-stemmed items of various thickness, and enables you to create a perfect organizational system for your arts and crafts supplies Flexible silicone grid keeps items secure and separate so you can store the unit both vertically and horizontally, without worrying they might shift or roll off the table Interlocking design on each side allows you to create a custom storage system by connecting multiple units together; Just think of all the ways you could organize your markers in. Ideal for organizing your marker collection by type, colour or number, and providing quick access to your items without having to search through a drawer or a case Designed to fit inside the Deflecto Stackable Caddy Organizer (sold separately) so you can easily take your markers with you