These are very nice trays made from good quality, thick plastics that don't easily bend under the weight of pots. Price of the set was good too, better than the discount Chinese store I bought from not long ago. I am glad I found this here.

We needed flats for transporting & growing on newly separated irises in 1 gal pots. These are very sturdy and the size and pattern of holes makes for good drainage and structural strength. They're more expensive than we expected but so good we've ordered 2x more.

Perfect seedlings trays to start my plants