They're perfect for organising and filing your important A4 documents. Features: The document trays can be used stacked on top of each other or laid out next to each other. The materials are made from 100% Recycled High Impact Polystyrene (HIPS). They can also be recycled after use. The trays are designed to suit A4 sized documents. The dimensions are 280 (W) x 355 (L) x 80 (H) mm. This product falls under the ‘Recycled Content’ attribute within the People & Planet range, meaning it’s made using recycled materials to ensure resources stay within the economy and away from landfill, so you can make a positive difference to people and the planet through the purchases you make.