Pennington, Black Plastic, Hummingbird Feeder Window Hook, 5 lb. Capacity

This does hold up to 5 pounds, I've actually been brave enough to test it. I've only had it during the summer months, and throughout tornado weather it has stuck on perfectly. However, if you live anywhere near woods I'd like to offer you some advice... BRING IN THE FEEDER BEFORE NIGHT TIME. We had a deer that was jumping on our glass window, eating our seed. It was loud and in the middle of the night I literally thought someone was breaking into our home. The deers hooves were hitting the glass! Thank god the window didn't break. But I guess even with a hungry deer pulling down on my feeder, this window hook stood up to the challenge.

Very impressed. I was skeptical at first if it would stick and it's done a good job. TIP: Make sure you clean your window and use alcohol on the suction cups to ensure it stays on. It survived a storm with 30mph winds the other day. Also make sure your feeder isn't to heavy. 5 pounds is the max. I would buy this product again!