The Squirrel-Be-Gone® MAX With Flexports™ holds 4 pounds of seed and has a redesigned Sure-Lock™ cap system that helps keep squirrels out. The patented weight activated seed protection causes ports to close under a squirrel's weight. The Flexports™ allow birds to feed easier and prevents wasted seed. Be sure to hang with 18-inch clearance on all sides so that squirrels cannot reach the ports.