DESIGNED FOR NON-SLIP & DRAINAGE: Designed for fast and healthy seed germination, this seed germination tray combines a corrugated design with drainage holes to conveniently and quickly meet the optimal growing conditions required during planting. Its corrugated structure minimises seed movement during planting, while quickly concentrating excess water into the drainage holes and flowing down to the bottom tray STACKABLE AND VENTILATED DESIGN: The micro vegetable growing trays can be stacked vertically from small to large, and can be reversed stacked for storage during normal times, saving valuable space.