1,[Upgrated Detail Design]The 4 feeding ports is designed for birds to at seeds and squirrels are difficult to get or can only get . The top cover of our bird feeder is metal and there is a metal clip that holds the lid in place, it is difficult for squirrels to open or bite the lid. The inner seeds tube is wrapped in iron spring, it is hard for squirrels to bite the food tube to get seeds. All the details are designed for better bird feeding and have a design patent. 2,[Inner Food Tube Design & Weather Resistant]The inner food storage tube is made of thick clear plastic material, which allows you to observe the condition of the bird seed easily. And it is suitable for most of the bird seeds, like , black oil and striped sunflower, nyjer, cracked corn, safflower, peanut, etc. The of the metal is coated to prevent rust, and the roof can protect the seeds from rain and snow. And the feeding ports perches are extended for birds convenience. 3,[Squirrel Proof Bird Feeders]Designed with a metal spring around the seeds tube, when a squirrel climbs on the bird feeder, the spring will stretch and the feeding ports will be blocked by the spring, and the squirrel is hard to get the seeds. This birdfeeder could stop squirrels in most cases, but not 100%, because squirrels are tough and smart. 4,[Attracting Wild Birds]Painted in a green color and with a unique desgin, our wild bird feeder will attract birds better, and it will also be a lovely backyard decor. You can get great close-up views of your favorite birds, like cardinals, chickadees, finches and blue . And it is a great gift for those who love birds. Factory printing batch number is different Colour:green Material:Metal+Plastic Package Contents: 1 x bird feeders Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.