... /PS) 2.Environmentally-friendly material. 3.Customized requirements are accepted. plant trayMaterialplastic (PVC/PS)Process TypeblisterColorblackTray sizeL53cm x W28cm x H4 ... --8mmSpecification21,32,50,72,105,128,200,288 cells.(cell trays)no cell (Flat Tray)Sample time3-5days(plaster mould); 7 ... , garden, roof.2.Use for propagating vegetables, flowers and other plant from seed.