Unique lid design incorporates a built-in funnel for easier filling with less spilled seed. Easy Clean technology allows you to simply lift and slide ports and base to remove and clean. Collapsible perches support all bird sizes, but collapse when squirrels try to hang on. Built-in baffle blocks squirrels from reaching seed ports. 2-in-1 insert to choose between sunflower or thistle seed. Stay clear, crack resistant tube. Durable metal powder coated parts. Dishwasher safe parts.