Since you can't give your Roborovskis acres of land as they have in the wild, a hamster wheel is essential. It provides an excellent way to exercise and Robos usually run on it up to 9 hours a night, travelling up 25 miles. Hamster wheels come in many different shapes and sizes, not all being safe for hamsters.

Metal wheels (as shown) are very dangerous for Robos. The gaps between the bars pose a huge risk for their tiny legs (example wheel pictured on the right), extremely when you notice the enthusiasm at which Robos run. Plastic wheels can also be purchased with the same size gaps, so avoid them too.

Solid plastic wheels are generally the safest kind of hamster wheel. Hamster wheels have a reputation for being noise and squeaky, but two new ones put an end to that. They are the SilentSpinner and the Flying Saucer wheels (Flying Saucer pictured below).

Houses are not essential, but they are touch your Robo will appreciate. It provides shelter, a place to sleep and hide when scared or sick. There are many shapes, sizes and colours in pet stores that can really liven up the cage or aquarium. An empty coconut shell with holes in - like this empty bird feeder stuffed with bedding - also makes a great hide-out.

Playing with tunnels and tubes is also very enjoyable for your hamster. Toilet paper rolls will do perfectly. They like to chew on them and build a nest from the shreds they chew up. There are plastic tubes you can buy too. (These are great if you want to build whole tube labyrinths. Ferplast, Crittertrail, Habitrail and S.A.M. all have an extensive range of tubes to choose from. The Crittertrail, Habitrail and S.A.M. fit interchangably. Ferplast tubes have a slightly larger diameter and do not fit the other brands.) 

Wooden tubes like this one (below) are also great for Roborovskis. Not only is it a great boredom breaker, but a Robo will automatically tend to gnaw on anything he sees. This wooden tube encourages gnawing (it is hamster friendly, non toxic wood - but always check the label to make sure).

There are crazy hamster mazes and houses on the market, especially on the Internet. Here is a maze that I particularly like:  

This kind of maze makes a great boredom breaker, and it is fun to watch your Robo figure his way round it. Put some fresh food in corners and see if your Robo sniffs them out. 

You can make home-made mazes too, on the floor, out of books standing up. But make sure there are no gaps where your Robo can escape from if it's in an open area of the house.

>  (available for £9.99 from Pets At Home website)

There are a variety of crazy hamster mansions  made out of wood, on Amazon - Click the imags to go to their respective page)