Lankhorst Rail Spacer RS100Used together (in pair) with Tunnel spacer RS100 to fixate the parallell rail pieces at a correct distance from each other, depending on coil widthOne pc per 4 meters is needed for lenghts over 4 metersFor RailRS100 and Rail RS100 Outdoor (WR)Manufacturer: Lankhorst Engineered Products SKU: 252567