Nectar Protector Jr.- Clear Carded. Ant deterrent which holds twice the amount of water than others meaning it does not have to be refilled as frequently. It"s clear so it doesn"t confuse Hummers. You can see when it is empty. Comes with S hook, fits 100% of feeders - even decorative feeders. 3.50 inches tall x 4.00 inches long x 4.00 inches wide