This unit can be used with 2 Y Turnouts (SL-397 or SL-E397) or Large Radius Turnouts (SL-388/9 or SL-E388/9) to form a double junction. This ever-popular trackage system for N offers a choice of either wooden or concrete type sleeper flexible track and a wide range of turnouts and crossings in both Insulfrog and Electrofrog types. Suitable for all makes of N Gauge trains and fully compatible with Peco Setrack.