Sturdy and Heavy Duty: High quality plastic is durable, reusable and recyclable - perfect for starting seeds, clones, growing -greens, herb and salad leaves. Trays features no hole - time to water and prevent leaking. Excellent Humidity control: Our high-rise, transparent domes have 2 adjustable and clear vents designed for easy control, maximum light penetration and the best viewing of your plant starts. : The dome and growing tray close well and forms a tight seal seal to maintain warmth and humidity- ensures the healthy and growth of your plants. size: 54cm x 28cm Material: Plastic colour: black Package Contents: 10 x Seedling tray Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.