Reusable Seed Tray: Flexible and sturdy, the seed tray is made of 12 mm plastic and silicone material that can withstand high temperatures without warping. It won't crack, creak or break and can be used year after year Easier to transplant: The soft, food-grade silicone bottom protects the integrity of the roots and soil. Simply press gently on the bottom to pop out the roots without putting any pressure on the seedlings. The tray is easy to clean and store, and is dishwasher safe. Upgraded dome design: The weatherproof buckle design allows the lid to fit snugly over the tray to maintain moisture and temperature. Adjustable vents allow you to regulate the temperature and humidity of the seedling environment, so you have complete control over the growing process. Smarter Drainage: Holes in each unit improve drainage and soil aeration. These seed trays are suitable for vegetable seeds, flower seeds and herb seeds. The bottom tray drains excess water from the seed trays and is also ideal for hydroponic use. You will receive: 1 seed tray, 1 waterproof base tray, 1 moisture-proof cover, 1 adjustable ventilation cover, 1 instruction manual, 2 gardening tools, 10 plant labels.