The Maxi Rootrainers are the largest modular Rootrainer in the range, perfect for broadleaved trees grown on a long cycle to larger salable sizes and for plants destined for dry sites. Please Note: Rigid trays are an essential part of the system. Propagating lids are not available for the Maxi. 40 cells/tray (10 books) Dimensions: 44.5cm x 27.5cm x 13cm Volume 350cc For broadleaved trees grown on longer cycles, to larger salable sizes. For plants destined to dry sites, and for prize Winning plants.