Bests & Worsts Reviews from Amazon

I purchased these seed trays over a less expensive competitor because I liked the clear inserts to be able to monitor root growth. Hopefully mold and algae on the inside of the walls won't negate this feature. I also chose small, individual trays over a large tray that holds 72+ seedlings because I want to be able to keep small numbers of seedlings going at various times throughout the growing season and I can rotate these around to accommodate different stages of seed to seedling growth. These trays are heavier plastic than the disposable 6-pack trays you buy annuals in and heavier than the Jiffy brand seed trays commonly seen in the big box stores. More like the plastic in a good quality to-go box you would get at a restaurant. They should last for years with proper handling. The clear domes fit snuggly over the base and the vent on top seems to work well. When not in use, everything stacks nicely together for storage. As you can see, 6 trays fit perfectly on each small metal shelf in this unit that is 23" wide with room to hang grow lights above the trays. The only negative for the higher price is that these didn't come with the little tools the cheaper competition has.