Bit of advice to any potential buyers: look carefully at the connections shown in the picture...as the manufacturers want this to be compatable with both classic and sport track, you can see the fasteners are not the same on both sides.
The way this connects to your track is by a "converter" piece which transforms what seems at first glance to be a half-length accessory to the size of a full length track piece. For some sets with few or no customisable straights (a figure of eight track, for example) it can be challenging to find space for it without a big rethink.
Due to restricted space I ended up having to cut/file away fastenings from a couple of mis-matching pieces and super-glue them together.
So, don't make the same mistake as me. When planning your track, allow a full track length for this accessory!