Super Sprouter? Singled Out Premium Mesh Tray is custom built to accommodate 50 each Singled Out pots or can be used as a stand alone mesh tray. Heavy duty design gives the mesh tray added strength and durability. Singled Out Pots are great for separating seed stock as well as providing an individual plant site for propagating singled out starts. The custom built mesh design tray holds pots in place and provides proper drainage. Mesh Tray fits great in all Super Sprouter? 10 in x 20 in trays and will fit most competitive trays as well.