These superb kits feature an injection moulded reservoir tray, support platform & growing tray plus capillary matting & a clear vacuum-formed cover. Unlike inferior quality trays, which may last a season at best, these can be used time & time again & are easily sterilised in a dishwasher. All mouldings are guaranteed for 10 years & (bar capillary matting & cover) the unit is made from 100% recycled plastic.