Feature: Specially designed for FLUTTER BUTTER the Peanut Butter for Birds. Its a whole new way to feed garden birds. Just twist in a jar of Flutter Butter. Just hang from a tree branch or hook with the supplied rust proof chain. Made in weather-proof polycarbonate that lasts for years. Feeder Only, Flutter Butter sold separately. Give birds visiting your garden a treat with this Flutter Butter Feeder. Simple to use, just twist in a 330g jar of calorie-packed, low-salt Flutter Butter and hang the feeder from a handy tree branch or hook. No mess and it can be done in no time.