NEW!!  Clean is good and with the "Onyx Clever Clean" your birds never had it so good - and neither have you.  Simply twist to release the base and remove any debris or old seed.  With each refill, you're giving your birds a fresh, clean fill every time.  The open interior allows for easy tube cleaning.  This feeder also features Comfort Perches, with a 180 degree two-position ring.  These perches accommodate numerous bird species and their eating perferences. The port confirguration permits unimpeded seed flow.  This 18" model has 4 feeding ports and a tray can attach to the bottom, as an accessory.  Similar models are available in 24" and 12" models.  Lifetime warranty against squirrel damage.