Hulled Sunflower Seeds are made from the sunflower plant. These are the same as striped or black oil sunflower seeds without the hard inedible shell. These are simply sunflower seeds with the shell removed that often lack the hulls that reduce the chaff underneath feeders. Hulled Sunflower Seeds are cracked when snacking by the teeth and then separated from the seed to eat. Commercially these have their shells removed by mechanical devices.