The pack contains one OO scale Buffer Stop and Light, which is ready to be situated on any section of track. No construction is required to install this item on to your railway. Both the Buffer Stop and the Light simply clip on to the track - no wires are required, and as separate items can be used together or independently either at platform ends or at the end of a siding. This easy to use item gives you “Instant Gratification” as when used on DCC, both LED lights are on constantly, while on DC layouts, one light will come on and vary with the speed of the train. These items are ready to plant but can be enhanced further with painting and/or weathering. They certainly help you bring your layout to life. GM55 – OO/HO Gauge Buffer Stop & Light Instructions - Click here to download PDF Icon MEASUREMENTS LENGTH 45mm WIDTH 32mm HEIGHT 20mm