Wide-mouth hopper design offers Easy-Fill—reduces or eliminates spillage Both feeding stations can be configured to accommodate Niger (thistle), mixed seed or sunflower seeds by flipping side walls. Easy Clean feature: sidewalls remove to allow the user to quickly clean the feeder if desired Unique adjustable depth perches allow users to tailor the feeder to attract the birds they want Holds approximately: 1.8Kg of seed Product Dimensions: 26.5cm L x 19.5cm H x 17cm W