The original silo drinker.Holds approximately 12 pints. made from very heavy plastic. can be used for food or water. keeps contents clean until used. now with best selling Orange colour base.Feeder/drinker 'holds' the contents in their reservoir. As food or water is consumed by the birds the base automatically refills. Highly recommended.Note: 10.7% Discount apply if you buy 2 or more