Heath's Suet n' Seed Butterfly is a fun way to feed your birds. The bright design is ideal for feeding black oil sunflower seeds and holds 2 standard=sized suet cakes. All-over mesh offers plenty of feeding area and the door on top opens for filling with black oil sunflower seeds. Standard mixed seed is not recommended as it will easily fall through | Heath Outdoor Products Feeder Suet 'N Seed Feeder Butterfly