Seed Starting Trays, 3-Pack, for Growing Microgreens, Indoor Gardening, Black. Description: Product: This set of 12 seed starting trays is ideal for growing plants at home. Material: Made of PET PS material, ensuring the durability and longevity of the plant growing tray. Size: The dimensions of the plant germination tray are 7.48 inches x 5.91 inches x 4.53 inches, and the round lid has a diameter of 2.36 inches. Design: There is a knob on the seedling tray to control the opening and closing. Wide Application: The propagation tray is suitable for seedlings, indoor gardening, growing microgreens, etc. Specification: Product size: 19cm x 15cm x 11.5cm/7.48in x 5.91in x 4.53in Round cover diameter: 6cm/2.36in Package includes: 1 lid 1 seed sowing tray 1 bottom tray 1 round cover (3 pack) Note: Please allow slight errors due to manual measurement and different monitors.