Size 5.875 , capacity 6 oz, 2 ports, feeder is made of acrylic, with a perch rim providing hummingbirds with a resting place. 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. Easy-fill cap and cleaning cover.. Dimensions are 6.375 X 5.375 X 2.75 UPC Code = 021964104665