Remington chokes are a system of interchangeable choke tubes, extended chokes, and choke wrench that allow you to quickly and easily change thechoke of your shotgun to match specific hunting conditions.FEATURES: Versatile Rem Choke delivers wider shot pattern for shooting at 25-45 yards Great for squirrels, rabbits, pigeons, doves, partridge, grouse, pheasant or wild flushing quail at medium range Also ideal for pass shooting ducks and geese with steel shot Puts 55-60% of pellets in 30 inch circle at 40 yards.