Cell trays are ideal for sowing individual seeds or rooting cuttings. This professional 144 cell seed tray is pre-filled with Jiffy plugs, made from coco-peat substrate. Simply soak the plugs before sowing to soften them for mess-free, convenient sowing. When your young plants are ready to move on, the plugs can be easily removed & transplanted, reducing root disturbance & giving your young plants the best start possible.