Bird Quest SBF4C 17" Spiral Peanut Bird Feeder - Copper Patented spiral perch attracts more birds and allows more birds to feed Spiral design allows cardinals, grosbeaks, and other desirable large songbirds to feed Birds love to perch on the patented spiral and "run the spiral" instead of flying to another perch Aluminum and stainless steel construction Wire mesh tube allows for easy feeding of peanuts, oil sunflower, or safflower seed