Pond and Pool Netting is a sturdy, safe material to install over ponds or pools to prevent leaves and other debris from entering the water, while protecting fish and other pond life from predators. It is constructed of polyethylene with 1/4 inch hole openings. The strands are bonded together and UV-treated for longer life. Pool and Pond netting allows sunlight, air and moisture which helps maintain the proper biological balance. It is easly to use and install.