Ventilation feature: The Seedling Tray has ventilation holes that let you control airflow to match your plants needs, helping to maintain humidity and support healthy growth. Efficient seedling growth: Designed for efficient germination, this Plant Germination Tray reduces the amount of planting required while ensuring uniform seedling emergence. This enables centralized management and can enhance overall productivity. Comprehensive package dimensions: The complete set includes an upper cover measuring 21.26 inch x 11.02 inch x 5.51 inch and a tray measuring 20.08 inch x 11.02 inch x 2.36 inch, within an overall dimension of 21.26 inch x 11.02 inch x 7.87 inch. Versatile application: This Plant Growing Tray is suitable for cultivating a wide range of flower, vegetable, and fruit seeds. It is designed for both home gardens and greenhouse production, and its durable construction ensures a long service life. Practical use scenarios: Indoor seed starting: Use on a bright windowsill or under grow lights to start flowers, vegetables, or fruit seeds, adjusting humidity with the ventilation holes. Greenhouse propagation: Set up multiple trays for organized, scalable seedling production and centralized management. Educational or community gardening: Ideal for classrooms or community gardens to demonstrate germination and seedling care while planning crop cycles.