Manufactured in the UK from 100% polypropylene, the new Monarch storage trays are virtually indestructible, shatterproof and will stand up to the rigours of daily use in any learning environment. Trays feature subtly rounded corners for a softer feel and touch, a re-inforced side rib for extra strength, a scooped out base for extra strength and stability, and can easily be recycled at the end of their life. Single tray WxDxH: 312x425x76mm. Unit WxDxH: 1022x453x600mm. Supplied fully assembled. We will contact you upon receipt of your order to confirm your choice of trays.