This Are The Thing U May Want To Know About Housing ^^
Generally, there are 3 type of cages you can choose from. They are the wire cage, aquarium cage, and the connectable cage.

1. Metal/wire cages
Advantages:
Durable and chew resistant.
Bars allow hamster to climb on.
Allow air to circulate more freely.
Disadvantages:
Temperatures fluctuate more drastically as metal can get very cold or very hot depending on the temperature it is exposed to.
Litter and food tend to scatter as the hamster likes to burrow and move around the cage. Metal cages with wire bottoms are not suitable for hamsters as their tiny feet may get caught in the wire.
The wires are susceptible to rusting, especially if your hamster likes to chew on them.
When buying such cages, opt for one with a non-wire bottom so that your hamster's feet will not get caught at the base.
A wire cage with a deep plastic base also reduces the amount of litter and food that is scattered
Sry No Pic Cannot Find Sry!T_T
2.Aquarium Cage
Advantages:
Allow for unrestricted view of the hamster.
No litter can be kicked out like in the case of the wire cage.
Disadvantages:
A screened lid will need to be purchased to prevent the hamster from escaping and to protect it from other animals that may try to get in.
Possible lack of ventilation. Such cages can create a "greenhouse" effect, with temperatures inside the cage being warmer than outside.
Water could also condense inside the glass walls creating high humidity, which can be deadly to hamsters.
And when u buy new hamster use this to bring back home so bring one when u are buying one must with base.

2. Connectable cage
Advantages:
Allow for additional space to be added on. Lots of climbing fun and tunnelling for the hamster.
Disadvantages:
Adding on space can be quite costly.
Poor air circulation