4 Pack of Rite Farm Products strong, washable poly Quail, Pigeon, Dove & Bird 3 hole feeders. 3 feeding openings allows for 3 birds to eat at the same time, without the mess or fight. Unit mounts with 2 hangers to the exterior of any cage, making it a breeze to fill from the outside. Clear plastic feed door hinges open from the outside for easy filling. Each feed slot holds approximately 1 pint of feed making it a 3 pint feeder in total. Feed openings are 1.8 inches wide by 2.8 inches tall. Better than rusty metal feeders, and costs a lot less! Made high-density, impact-resistant polypropylene that will not rust, rot, or corrode. Easy to keep clean plastic surface. Outside measurements are 10 inches wide by 4.5 inches deep by 5.7 inches tall.