24-Cell Seedling Starter Tray for Indoor Hydroponic Nursery, Black. Note: This product page is only for the Black color. If you need other sizes/colors, please see Questions and Answers. Description: Product: This 24-cell seed starting tray with planting block set is great for growing your plants at home. Material: The seed starting tray is made of PP material, ensuring the durability and longevity of the plant growing tray. Function: The seedling tray can protect against damage caused by strong winds, heavy rain, or extremely cold weather before transplanting to a garden or larger pot. Humidity Dome: The seed starting tray has adjustable ventilation in the top dome, allowing you to regulate the temperature and humidity of the seedling environment. Application: The starter kit is good for potatoes, tomatoes, peppers, eggplants, fruits, flowers, and other plants. Specification: Material: PP Size Chart: 36.5cm x 28cm x 17cm / 14.37in x 11.02in x 6.69in Package Includes: 1 Set of Seed Starting Tray Note: Please allow slight errors of 1-2cm / 0.39-0.79in due to manual measurement