It seems like you're asking about a "chabi" or key with two different sizes, 20mm and 22mm. Typically, a "chabi" or key is used to lock or unlock something, such as a door, padlock, or car. The size of the key corresponds to the lock it is designed to operate.
In this case, you might have a key that has two different ends: one end is 20mm, and the other end is 22mm. This could be used to operate two different locks, each with a different keyhole size.
If you have specific questions about these keys or their usage, please provide more context, and I'll be happy to provide more information.
