A versatile storage system that keeps work surfaces clear and organized. Made from sturdy molded ABS plastic, this tray has 14 compartments of various sizes and 27 slots for pencils, pens, and markers. Special compartments for scissors and items up to 15" long such as rulers or brushes. Can be mounted to the left or right side of any table that accepts wood screws. Works best for tabletops between 5/8" and ¾" thick. Requires 4" of open space under table for attachment brackets. Also includes rubber feet for convenient desktop use. Overall dimensions 29"l x 7"w x 2¼"d.