NK Windowsill Greenhouse Seed Starter. It features 36 square cells, each measuring 5.5" x 22" and deep enough to accommodate healthy root systems. The raised ridges keep the plant roots above the water line, providing maximum air circulation for healthier root development. A clear greenhouse dome retains essential moisture, while reusable deep cell inserts made from recycled plastic ensure eco-friendly and biodegradable use. Compact design ideal for growing kitchen herbs, perfect for herbs, flowers, and vegetables. Scan the QR code on the package to watch tutorials, get tips, and view products.