Save money by catching up to 90% of spilled seed! Protects lawn and garden from rotting seeds, weeds, and damage to grass. Keeps birds safe from ground predators and eliminates a food source for rodents. Is durable, lightweight and easy to attach, and adapts to virtually all bird feeders. Straps to birdfeeders via 4 cords each 36 inches in length. Has a wind guard which saves even more seed. Made of light weight exterior grade vinyl coated fiberglass mesh. The frame is of lightweight flexible tempered steel wire that can be twist folded and collapsed to 1/3 its expanded size for easy storage. The sleeve is made of exterior grade polyester. Hooks are corrosion resistant. Nylon cords adjust easily to virtually any feeder. Feeder in picture not included. Great for people living in apartments who want to feed the birds without the mess. Provides another feeding level for birds that prefer to feed with flat feet, such as Cardinals and Juncos.