Ordered this bridge as needed to run a power cable from the starter gantry across the track to access the plug socket. This bridge kit seemed the most suitable solution. Was sceptical 🤨 at first, however on receipt of the bridge I’m pleasantly surprised. Track is in excellent condition as are the bridge sides/balustrades. The bridge section slotted into the existing track without any problems or need for adjustment. Cars can get stuck though if travelling too slowly, but, if enter the bridge section at a reasonable speed no issues at all. Great addition to any Scalextric track and makes the experience that little more interesting. As for the purpose I purchased this item for i.e. to run a cable under the track.... perfect solution.
These curves enable our basic set to get a lot more track into the course, extending each lap and making for more bends on the track. It's all working fine, slots into the standard track we have, no problems.