Sold in set of 3
 
Overall Size 4 3/8" diam. x 1 3/4" H
Interior Space 8 oz.
 
Prevue Pet Products Stainless Steel Coop Cup 1243 fits all Select series bird cages (#3151-3154),
 
Dome top bird cages (#3161-3163)
Royalty bird cages (#3171-3173).