humidity dome 6" tall extra strength, 10 pack, propagation seed cloning lid vented for 1020 tray seed starting germination bootstrap farmer exclusively designed and sold by bootstrap farmer, the only humidity domes you will ever need. understanding that farms are not a place for fragile objects, we decided to produce these trays for our own farm based off our own dissatisfaction with the flimsy and brittle quality of the other trays available online and in the big box stores. tired of wasting money and putting more plastic into the landfills, we decided to produce trays that were thicker, could carry more weight and withstand even this farmers abuse. we are a small family farm in eastern nc where we grow our own produce for a farm-to-food truck concept. we grow lettuce, kale, chard, microgreens, tomatoes, peppers, onions, you name it. we'd love to know what you've got yourself into, so feel free to contact us to chat about it! key features: extra thick clear plastic propagation dome 5.5 inches high (11.43 cm) 6 inches including handle adjustable vents for air circulation if desired handle on top for easy removal these are meant to be reused over and over, season after season. they are perfect for microgreens, wheatgrass, fodder, and germination of seedlings. ideal choice for hydroponic, hobby and commercial growers. these will fit on top of any standard 1020 flats and cell trays, including our super durable flat and cell trays, sold exclusively by bootstrap farmer. domes are a bit wider on the bottom and slightly tapers to the top. outer dimensions: 21.25 inches long x 11 inches wide x 5 inches high. makes a great bundle or kit with our extra strength 1020 flat trays and our extra strength 32 cell, 72 cell, 128 cell, 200 cell trays.