Hornby Dublo Three Rail Buffer Stops with original box. My Ref. (J101). This vintage Hornby set is perfect for model railway enthusiasts. The DC power type and analog control system make it easy to use, while the 1:76 scale and OO gauge ensure that your model trains run smoothly. Made of durable plastic and painted in a sleek grey color, these buffer stops are a great addition to any collection. The set includes two buffer stops and comes with the original box, making it a great gift for any collector. My Ref. (J101) is a must-have for any Hornby fan.