Linking Book Bins: Keep books organized and within reach with this 10-pack of connecting book tubs; interlocking sides link multiple bins together for stability to create a complete storage system Classroom Storage: The open design allows students to quickly access supplies; built-in handles make it easy to disconnect bins, and carry a set of books to a reading corner and back Multipurpose: Sort and organize books, papers, and other classroom supplies in the magazine file holder; for a curated organization system, create custom labels or color code bins for book genres or STEM learning Certified Safe: Student book bins are UL GREENGUARD Gold Certified for low VOCs and CPSIA compliant; bins feature rounded edges for added safety and are constructed with recyclable material Product Dimensions: Each magazine holder measures 15" L x 5.25" W x 7.2" H; Adult Active Engaged & Direct Supervision Required