1.Bird pond defender is made of quality plastics with , Black, 10 Pack | 2.Floating heron deterrent proctor size: each ring is 11.8 x 10.6 inches. | 3.Easy to install with connectors, and can float on the water to protect fish into pond. | 4.Pond fish protector design is 6-angles,Can be better to fit and to become a plastic net to protect your animal in your pond. | 5.It is very light and float on the water, also easy to storage when you don’t need them.