pond protectors will discourage pests such as heron or cats from accessing your fish.EASY INSTALLATION - The included clips slot over the pond protectors, linking them together. Simply link together the needed amount for your sized pond.Lightweight plastic design ensures natural flotation and almost invisible just a few feet away, unlike traditional nettingFLOATING DESIGN - The lightweight design of our pond protectors means they float on the surface of the water, creating a protective guard.The lightweight design means the pond protectors float on the surface of the water, creating a protective layer.These pond protectors are easy to install and are suitable for any sized pond.colour:blackMaterial:plasticsize:Length: 26.8cmWidth: 26.3cmThickness: 0.2cmPackage Contents:20 * pond protectors40 * linking clipsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.