The hornby half curve is a 2nd radius arc for your train tracks giving you extra room for flexibility as you build a personalised route for your miniature locomotives try building all kinds of unique shapes and ranges with this extra accessorycompatible with most hornby rails and tracks this half curve helps you to steer your trains and vehicles additionally it comes with a pair of clips on either end to attach your tracks together completely hassle freesize 438 cm 172 inchesarc 11