These superb kits feature an injection moulded reservoir tray, support platform and growing tray plus capillary matting and a clear vacuum-formed cover. Unlike inferior quality trays, which may last a season at best, these can be used time and time again and are easily sterilised in a dishwasher. All mouldings are guaranteed for 10 years and (bar capillary matting and cover) the unit is made from recycled plastic. 12 Cell - 37.5cm (15") x 13.5cm (5¼") x 16cm (6¼") high. 24 Cell - 37.5cm (15") x 23cm (9") x 16cm (6¼") high.