Professional grade 128-cell Seedling Plug Trays are made of thermoformed PP plastic and are a convenient and cost-effective propagation solution proven to produce compact, uniform and hardy seedlings. These black plug trays measure 540mm(L) x 280mm(W) x 41mm(H), with a cell volume of 17.5mL. Each tray requires approximately 2.2L of fine seed-raising mix, providing significant savings in propagation mix. In commercial propagation facilities, when high quality seeds are sown, germination results above 95% are routinely achieved with these trays. These trays are not a substitute for poor propagation technique, however, under the right conditions, they can achieve exceptional germination results. Please keep in mind, given there are 128 cells in a tray, the individual cells are quite small (28mm x 28mm x 41mm), therefore cells can dry out quickly if they are in an exposed aspect during the propagation process. What we love Cost effective seed propagation plug trays Tapered cell design with wide diameter hole at base for easy seedling removal Suitable for use in commercial propagation facilities Product Details & Specifications Seedling trays measure 540mm(L) x 280mm(W) x 41mm(H) Each tray has 128-cells measuring 28mm x 28mm x 41mm each Individual cell volume of 16mL What am I Purchasing? 128-Cell Black Seedling Plug Trays, of selected pack size