Anatomy

Modularity

One of the main features of any synth is their modularity. Every synth is able to customize their body in various ways. Feet, hands, arms, legs, tails, visors, head shapes, skin style and many other internal parts can be exchanged. Module exchanges can be done for personal, professional and medical reasons. If a Synth likes the design of a pair of legs they see on display at a store and that pair of legs comes in a size that fits their current body size, the Synth can purchase it, take it home and exchange the old legs for the new ones.

Tools

Many professions carried out by Synths require the use of tools that can be mounted directly to limbs. Some professions have size and equipment requirements that a Synth has to meet before being accepted for the position. An example would be in construction, where Synths have to be tall and strong enough to carry heavy loads, but also to fit the various power tools used during construction. Some professions require the use of precision instruments, like surgery hands with nimble fingers, scalpels, cameras and suction tools built in. The use of tool modules allows Synths to carry out very specialized tasks while they are on the job. If you can think of any specialized tool, there probably is a module that includes it.

Just like with normal tools, most specialized tool modules are owned by companies and given out to their workers as needed. Synths can also personally own tool modules that can be useful at home or in other daily situations. Cooking for organic guests is much easier when you have a cooking hand that includes knives, graters and a potato peeler. Synths who like to tinker with electronics typically own soldering and wire cutting modules.

Despite Synths having the ability to mount tool modules, they don't have to. Due to their humanoid nature, they can use most tools that organics can use as well. In most cases it is easier to simply use a normal hammer than to use an expensive module that does the same thing. Tool modules will usually only be used when it actually ends up making tasks easier than just using regular handheld tools.

Stigma of changing parts in public

To most Synths the process of changing parts is a very personal affair. It is comparable to an organic person changing clothes. Since it often is connected with embarrassment, it typically is not done in public. Therefor it is common to find changing rooms inside stores that sell Synth modules or any other place where a Synth might have to exchange one part for another, such as work places where particular work modules are required. Synths will typically only let you see them changing parts, if they know you well enough.