There is no drainage hole at the bottom of the seedling tray, which can be used For placing pulp seedling cups, plastic planting pots, hydroponic pots, etc., non-porous seedling trays can retain and save water, without frequent watering. The tray size is 54*28*6cm/21.3*11*2.4in. It has a large capacity. and can hold more plant pots. Attributes Name: Tray seeds. material: plastic. Quantity : pack of 5. Weight: 230g. Color: Black.