Gratnells Deep Tray will fit all standard school furniture. Molded in polypropylene with no rough edges, they are fully stackable, colorfast and chemical resistant. Built in carry handles, fully recyclable and come with a 5 year guarantee. Made 100% in UK, international award-winning trays are British Standards tested and passed for heavy educational use.Details:Available in multiple colors12.3" x 16.8" x 5.9"Pack of 6 traysStrong and rigid, built to last and recyclableCompatible with Gratnells lids and racking systems (sold separately)Works with standard school furniture