If you have a determined chewer it may escape. Some plastic cages, escpecially clear components like the lid of the Ferplast Duna, are very brittle and easily broken if dropped. With modular cages where different sections are joined by tubes, a mouse may be able to climb up a tube but may have difficulty coming back down. Wherever there is any possibility that a mouse may find it hard to leave a section, leave an emergency water supply in that area. Having parts of a cage which are difficult for a mouse to reach or leave is generally a good idea, as it challenges them, makes life more interesting, and makes them work, but it is vital that water is available at all times in case they become ill, or are just to stupid to get themselves back to their normal water supply.
Mice love tunnels, hiding places, and exploring, so modular systems provide a lot of opportunities.
This cage is a Ferplast Duna . The top is normally covered by a panel of wire bars, which has been removed so that you can see inside. A larger 18Kb version of the photo is available. You can make a functional temporary mouse cage simply by using a large plastic washing-up bowl or similar container, and bending a piece of wire mesh to make a lid. This is a cheap and quick method of making an emergency mouse home, but it provides a limited range of opportunities for mice - they cannot climb, and there may not be sufficient height to add a wheel.