The top fitting toddler seat fits the 'Everest' ABC Adventure Buggy Company prams.
The advantages of the top fitting toddler seat are:
It is simple and easy to install and remove;
The weight displacement makes the buggy very light to push and manouevre, as the toddlers weight isn't over the front wheels as front-mounted toddler seats are;
You are able to use you stormcover or sunmesh to protect your newborn, which isn't possible with the front-mounted toddler seat.