Mr. Pen seed starter tray kits include 5 complete sets with a total of 200 cells, offering a practical and organized solution for seed starting, indoor gardening, and greenhouse growing. Made from durable plastic, the trays, bases, and humidity domes are built for repeated use and dependable performance throughout multiple planting cycles. Individual cells feature drainage holes that help manage water flow, reduce excess moisture, and support healthy root development during germination. Clear vented domes allow easy humidity and airflow control, helping create an ideal environment for faster, more consistent seed growth. The set also includes a handy shovel and scoop, making soil filling, planting, and transplanting easier, cleaner, and more efficient.