Okin Document Trays are an excellent way to organise mail, documents, paper and files. The set of 2 trays (often referred to as letter trays) are stackable for convenient double layer storage, with a recessed edge to easily access papers. The document trays simply click together with snap hinges and can be stored flat when not in use. Constructed from robust polypropylene for durability. Great for use in the office, workplace, educational environments and at home. Additional stackers can be purchased separately