The Hornby R803 Buffers are pre-built, ready-to-go accessories designed for Hornby model railways in a scale of 1:76. Specifically made for the British Railways Steam Era (1948-1956), these black buffers are compatible with Hornby R803 models and are ideal for collectors looking to enhance their analogue-controlled railway systems. Perfect for Hornby enthusiasts, these buffers add authenticity to the OO gauge model railway experience.