New purported details have been published about Samsung’s alleged initiative to release a mobile device or devices with bendable or rollable screens. According to insiders who spoke with Bloomberg, the company may launch as many as two of these so-called “Project Valley” handsets as soon as next year’s Mobile World Congress trade show in Barcelona, Spain.

Bloomberg reports that the devices include both a phone that folds over onto itself (concept pictured below), like a makeup compact, and one that expands from a five-inch mobile into a more tablet-like eight inches (concept pictured above). The report uses the world “unfurls” to describe the transformation, suggesting that it utilizes a rollable, not foldable, display. But both supposed devices address a fundamental conundrum that has challenged the industry as consumers’ appetites for larger display have exponentially increased: how to offer bigger screens while maintaining a pocketable form factor overall.

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The sources also told the publication that neither of these devices will be branded as part of Samsung’s best-selling Galaxy S flagship line, although it’s likely that they’ll still be part of the overall Galaxy family of Android-powered products.

Samsung is known to have been developing foldable OLED screen technology for some time now, regularly showing off its progress at display industry conferences and shows. And it’s already mass-produced at least four commercially available phones that utilize an iteration of the technique, starting with 2014’s Galaxy Note Edge and its single curved edge display. This was followed by three more handsets boasting dual curved edge displays: the Galaxy S6 edge, Galaxy S6 edge+, and Galaxy S7 edge.