103 Keys Deluxe Ultra-Slim USB Flexible Keyboard

Advantages: It is flexible
good against dust and harsh surrounding.
Disadvantages: It probably takes long time to get used to typing this thing
if it is not proper straight, it will be more problem when typing.

Just like the first time you used a keyboard, you may have to practice a few times to get a feel for the location of the keys. If you already type well on a traditional keyboard (no peck-and-choosing), it should take you about 10 minutes of practice to get up to speed on this keyboard.

A flexible keyboard is a keyboard usually made of soft silicone that is highly portable and attaches to a computer through a USB connection or serial port. The keyboards can act as replacement keyboards if an original keyboard gets damaged. They can also be quite durable; in some ways even more durable than a traditional keyboard.
The silicone skin of a flexible keyboard will protect it from a number of different substances. For example, if the keyboard is used much around liquids, the silicone is excellent protection against spills. In other cases, such as in automotive garages or industrial areas, the flexible keyboard can replace keyboards that need to be protected with plastic coverings. This is ultimately more friendly for the user, as the keyboards usually have a more natural feel than one with a plastic cover. When dirty, they can easily be wiped off with a damp cloth.