Hummingbird feeder. Acrylic window mount. Wide mouth feeding bottle snaps on and off for simple cleaning. Two feeding flowers and detachable perches. Feeder will not drip on window or house. A sturdy suction cup attaches feeder to window. Plastic legs keep air space between window and feeder. Features a snap-on detachable base for easy refill. Dripless shatterproof and easy to clean. Length: 3.31. Width: 8.25. Height: 5.31. Filling Instructions. 1. Remove base by pinching the two tabs together and pulling down. 2. Flip bottle upside down and fill with nectar. 3. Place the base back on the bottle and insert the tabs back into the groves on the back of the bottle. 4. Flip feeder and hang with suction cup onto window. Cleaning instructions:. 1. Remove base. 2. Clean with warm soapy water. 3. Rinse thoroughly. 4. Reassembe feeder fill and hang.