A set of TWO stainless steel drain guards, essential for keeping your drains from blocking. Each guard has 77 holes which are 8mm in diameter so are big enough to allow water to flow freely into the drain but small enough to prevent leaves, twigs, general debris, etc from entering the drain. They are 150mm x 150mm (6" x 6") square so will fit over a standard drain outlet. As they are manufactured from stainless steel they are also rust proof. Not only are they essential for the garden but they also enhance the appearance of the drain. No tools or fixing required, simply place over the drain.