Humidity Dome 6" Tall Extra Strength, 5 Pack, Propagation Seed Cloning Lid Vented for 1020 Tray Seed Starting Germination Ultra-Durable, High-Quality, BPA Free Clear Plastic Humidity Dome. Made to last multiple seasons Perfect fit on our heavy duty 1020 trays and other stander 10x20 flats Heavy Duty Dome is 6" tall (5.5" interior space). Great for cloning tray Outer Dimension: 21.25" x 11" x 5". Adjustable Humidity Vent and Easy to Grip Handle on Cloning Dome Won't buckle or break with weights stacked on top. Great starter for Microgreens, Wheatgrass, Fodder Height is 6&#034; on the outside with 5.5&#034; of interior space. Width: 11 inches Length: 21.25 inches Includes Easy to Carry Handle