Peco's OO gauge 2nd radius curved crossing addon to extend 1st or 3rd radius level crossings from the same range.All level crossings that are part of Peco's Setrack Level Crossing System can be extended by adding additional crossings to increase the number of tracks that pass through. This addon unit does exactly the same thing but doesn't include the road ramps or crossing gates therefore reducing both cost and wastage. Use this addon unit to turn your single-track level crossing into a double-track crossing. You can use it to add an addition level crossing track to the outside of a radius 1 crossing, or the inside of a radius 3 crossing.All level crossings and addons in the range come complete with nickel silver rails, plastic decking and rail joiners attached. The following products from the range can be directly added to this crossing addon:Peco's radius 1 level crossing (ST-266)Peco's radius 3 level crossing (ST-263)Ref.: ST-269 - Also listed as ST269