The supplies are created from sturdier plastic than some kits, so that you can reuse them for a number of growing seasons. Air vents are bundled for that domes, so you're able to much better control humidity degrees and air circulation. In this set, you will get two silicone trays https://lt1101isw-pbf33197.bloguetechno.com/what-does-vegetable-and-flower-seedling-seeder-mean-61991702