Guinea pigs can use runaround just as well as rabbits. The ridged pipe means they can safely and easily access top boxes and go up and down gradients. They love the ability to hide and peep out of the tunnels and connections and more space means they can have a really good long run in one stretch.
If you already have a hutch consider adding a connection kit and some mesh tunnels or a 4ft run.
If you need a hutch our insulated Top Box and Hay hutch provide draught free zones where they can keep warm when outside. These link easily to our runs. You can link up as many areas as you wish. It all makes it more fun for the guinea pigs and flexible for you.