Size 5.875 capacity 6 oz 2 ports feeder is made of acrylic with a perch rim providing hummingbirds with a restingplace.Leak-proof design guarantee.Feeder lets hummingbirds come close for a spectacular view.2 feeding ports are positioned for unobstructed view.Suction cup bar is an easy off design that holds securely to window.Dimensions (L x W x H):6.37 x 5.37 x 2.75