Ultimate fat balls are extremely high quality with a high fat content and no addition of lime, plus quality ingredients such as black sunflower seeds, chopped peanuts, cereals, seeds and oils. They have no nets making them safer for birds and wildlife and more environmentally friendly. The unique composition means the balls remain soft enough in extreme cold, but are also great for use in summer shade. The high fat content ensures that the fat balls are suitably water-repellent.