Hampton Direct Window Mounted Bird Feeder - Watch Birds Up Close By Your Window Feeder safely attaches to any glass surface, and crystal-clear acrylic housing allows you to enjoy close-up bird watching from the comfort of your home. Perfect size for most backyard bird species, and flip-top lid makes for easy seed filling. Includes super-strong, all-weather suction cups for mounting. Has 2-way mirror film so you can see birds, without them seeing you. 10" x 6.5" x 3.5".