Dear Betty do you have the Prevue Breeder bird cages or another Prevue bird cage?
These dishes fit the following bird cage models FO61, FO610, FO630, FO80W
This is an example of the FO61 style Prevue bird cage they fit.
https://www.birdandparrot.info/Flight-Breeder-Cage-24-4-Pack-WHITE–Prevue-FO61_p_482.html
The same bird cages are made by numerous manufacturers, and their doors may be a bit different. The Prevue bird cage shown/listed has door opening that lift almost 6 inches up, so you likely do not have a Prevue bird cage if it “looks” like that cage and the door will not lift high enough to fit the dish
They may not fit all manufacturer bird cages of similar style and they do not fit all Prevue bird cages that use a winged dish.
The Generic #80 will fit the Prevue bird cage models 121, 123, 125 cages but will not fit the FO61, FO610, FO630, FO80W cages.
So many cages and so many dishes.
We try to include all the dimensions in the listings do help. But we don’t carry all dishes made. Sorry.