: Manufacturers utilize premium Silicone or TPE (Thermoplastic Elastomer) , materials known for their durability and "skin-like" tactile feel.

: These dolls feature advanced skin textures, realistic facial features, and lifelike body proportions designed to provide an immersive experience.

In Japan and abroad, these dolls are increasingly viewed as more than just objects. For some, they serve as a remedy for loneliness in a society with record-high single populations. Documentaries such as those by NBC Left Field highlight how some owners view these dolls as "family" rather than just rubber and plastic. This shift in perception is a primary driver behind the high standards seen in the Yui Nakata line, where the goal is to create a "loved one" replacement or a unique form of intimacy.