So, I got the 2 pack with lids because I had two different uses for them. First, I wanted a nice big tray to grow some cat grass for my fur baby. It does the job as well as any sprouting tray I've used, it feels nice and sturdy, and the bottom tray is deep enough for the grass to develop pretty good roots without drowning. The seeds I had sprouted in 4 days (not 5 like I expected), even though I didn't really rinse and drain them as often as I was supposed to. I think that's because I used the lid, which trapped the humid air inside and kept the seeds moist with very little effort on my part.The other use I had in mind, though, was unconventional. I just bought an RV and will be living in it half-time with my cat. I use pine litter, so I needed a litter tray that would let me sift out the sawdust and keep the good litter on top. Regular sifting litterboxes are made for clay litter, so the holes tend to be much smaller, and they're designed in such a way that you keep the stuff that falls through the holes and throw away the stuff left on top. Pine litter is the exact opposite, and it requires larger holes. In my house, I use the (large and pricy) Happy Cat sifting litter box, which is fantastic, but not really compatible with the smaller space of a motor home. But this little tray is just right. It fits in an unobtrusive corner, my cat took to it immediately, and the holes are just the right size to let the sawdust fall through without clogging.Now, I have a pretty small cat. She's full-grown but only weighs 8.5lbs, and she's short (both lengthwise and height - AFAIK she's not a munchkin breed, but I wouldn't be surprised if she had some in her lineage, either). So this definitely wouldn't work for a larger cat. She's also a real princess about her potty usage and isn't prone to scattering litter. And the amount of litter that will fit in this tray is fairly small -- I expect to scoop and sift daily, but so far I haven't had to do so *more* than once a day. You *do* have to put the lid on before you shake and sift, or you'll get sawdust and pine pellets everywhere, but that's zero percent a problem for me. I also put the lid on and secure it with a file band when I'm in motion so that I don't have to worry about spillage.I expected to have to attach a small support to the center of the upper tray to keep it from bowing under my cat's weight, but it doesn't bend at all when she steps on it. It feels surprisingly sturdy, and the plastic is lightweight but thick and not brittle. All in all, much better quality than I expected for the price.If you've got a small space and a small cat who is tidy when using the litterbox, these seed sprouting trays are worth a look as an alternative solution. I can see them being really useful for kittens who are too small to climb over the edge of the Happy Cat box (which is pretty tall, actually) or maybe even older cats with mobility issues. And they're less than half the price! I'm very pleased with them and may end up buying more to donate to my local cat shelter before "Kitten Season" in the spring.

I'm currently growing some Korean bean sprouts and hoping to grow some homemade ones. Regarding the growing kit, it's made of plastic, which is the most common material available. However, the kit is pretty decent and doesn't feel flimsy. The mesh that came with it is a nice option for growing microgreens in the future. Overall, it's a pretty good growing kit for home growers!

Easy to use and keep clean. Good results with arugula micro greens. I'll try different seed types and see how it holds up. Would be 5 stars if the plastic was a little bit thicker.

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After a few trials, I've gotten cat grass growing down perfect 👌! I don't use the cloth anymore. 1. Soak seeds in 2 inches of water for 8-12 hours in the green tray. 2. Lay 3/4 inch of dry soil in the white perforated tray. 3. Sprinkle seeds evenly and loosely 4. Water gently just enough to moisten soil (I use a spray bottle on mist). 5. Add an additional layer of soil 1/2 inch to 3/4 inch. 6. Gently water until soil is soaked. 7. Cover with lid for 24-36 hours, making sure soil stays moist, spray with water if needed. 8. By 48 hours or so I see little shoots starting and then leave uncovered, continuing to water. 9. At 4 days or so you have shoots of cat grass, day 6 full grass growth. Keep them watered as needed and it should thrive for approximately 3 weeks. That's about the time I repeat the process above with the second hydroponic tray so the next batch is ready for my kitty! The old batch, I just let dry out, lift it up and scrape the roots, turn it over and dump out the old stuff, then rinse it out. Easy easy cat parent (and kitty) approved!

I REALLY wanted to give these trays a higher review, but I am constantly having trouble with my seedlings molding before they produce grass. I have found out the reason, as shown in the pictures. The small squares hang on to too much water, and that water retention is what causes mold to form. In one photo, you can see most of the squares are bubbled with a droplet of water. The next picture is after I have banged the tray in the sink...there are still squares with water retained. I had put these away after about 6 months of failed growth and molding, but I am going to give them another try.

got these trays to sprout for my chickens. works great!

Will not purchase again. The product arrived with large cracks on both the green and white trays, and there were a couple of dead bugs in the tray... Not sure why this was even allowed to be shipped, shows a lack of care for the product and the consumer.

Parfait pour faire mes micro-pousses. Agréablement surprise par la grosseur du produit. Merci

affectional and durable

Facile à utiliser

The holes in the plastic grid are too big for most sprouting seeds. About all its good for is chickpeas.Brassica variety seeds will mostly fall through. Very disappointed

Buried deep in the description is the tiniest mention that small seeds can’t be sprouted in it. I missed it.Now I have to purchase sprouting papers so that I can make this gadget work for my broccoli and alfalfa sprouts.Definitely inconvenient and would benefit from an update to warn people in the description.