About This Maximize Your Growing Space: 128 individual cells plug tray for for efficiently starting a high density of medium-sized plants such as lettuce, spinach, Swiss chard, celery, and a variety of culinary herbs Healthy Roots: The tapered, 1.5" deep cell design guides roots downward to prevent circling; This "air-pruning" effect at the drainage holes creates a dense, healthy root mass for rapid growth after transplanting Excellent Drainage: Each cell features drainage hole to let excess water escape rapidly; This keeps roots aerated and healthy, effectively eliminating the risk of waterlogging and root rot Heavy-Duty Material: The plant tray for seedlings are made from thick, durable plastic that resists bending and cracking; This tray is built to withstand heavy soil mixes and can be easily cleaned and reused for many growing seasons Perfect for Standard 1020 Trays: For the ultimate setup, pair these versatile seed starter trays with our matching Drip Tray (ASIN: B0FNMGPBJ6) to enable clean and efficient bottom watering for stronger seedling growth Overview Material : Plastic Color : Black Special Feature : Stackable Style : Garden Shape : Rectangular