These are nifty little trays... they exactly hold our 3.25" square pot, or a standard 4" Hawaiian grower pot. This is the size pot you are most likely to purchase an orchid in if it's in a 4" square pot.. many of the HI growers use this size. The saucer actually holds the pot slightly above the surface of the saucer, so allow for good drainage as well! They are made of very sturdy black plastic, that is thick enough not to weep moisture onto furniture below, and the design is sufficient to hold steady, even the most top heavy orchid (as long as it's in a square growers pot). I use them frequently at the Farmers Market, or shows, to keep the orchids upright! A most excellent invention! Saucer Tray STRAY$2.00 Site Index: page 1, page 2, page 3, page 4. Front Page