This one quart stainless steel nyjer feeder is made by Birders Choice.  The yellow die cast top and bottom has a stainless steel tube with a removable bottom - no center post for ease in filling and cleaning.  Feeder is 3.5" in diameter, 11 3/8" high, plus hanger.  We offer a yellow "Add a Tray" to attach to the bottom.  The tray has drainage holes and comes with hardware for easy installation.  See Tray, Model 903 in Accessory section.