Keep peanuts out of reach from marauding squirrels with this innovative feeder with a high capacity of 750ml the unique design of this feeder gives your birds a stable perching area to feed the adjustable tension spring means you can adapt the feeder to exclude squirrels or larger birds like pigeons when they attempt to eat the contents when you receive your squirrel buster peanut the factory tension will be set to 70g so anything weighing over this will force the mesh shroud to close over