Triple column tray unit, including 9 Extra Deep Gratnells Trays. Made from a solid and scratch resistant 18mm MDF laminate. KubbyClass Tray Units are part of a range of furniture that is fast becoming the a favourite for many UK schools. Manufactured in the UK by Willowbrook Education. 10 Year Guarantee.Dimensions: 962(H) x 1050(W) x 462mm(D) .