Wild Birds need help this Winter to maintain their natural habitat. Frost Stop is a natural alternate to prevent frost damage during Winter. This clever solution will not only help maintain drinking water for wild birds and stop the water freezing in your bird baths and water features. It will also help to prevent frost damage and help water to keep flowing protecting your pumps too. Safe for birds, wildlife, children & pets Stop water freezing in bird baths and water features until temperature drops to below -6oC 250ml Bottle This Frost Stop 250ml is safe to use as it is made from non harmful, natural ingredients Safe for children, pets and wildlife Stop water freezing in bird baths and water features until temperature drops to below -6oC Non-Toxic Helps prevent frost damage Treats 45 litres (10 gallons) One dose lasts for approx. one month Prevents damage to pumps