|“||Didn't you say that everything should have a name? I want to give her a name too... Stone Free... because I want to be free from this 'stone ocean'!||”|
—Jolyne, SO Chapter 9
Stone Free is a humanoid Stand of a height and build similar to Jolyne's.
It wears what appear to be a pair of sunglasses varying in darkness, obscuring vertically ridged eyes. Four blade-like protrusions run over its head from the top of the jaw to the back of its neck, bordering the sides of both eyes. Cones truncated at a length of one-third the width of its head protrude from the region of the ears.
It wears elliptical shoulder pads with a vaguely snakeskin pattern, and hexagonal knee pads. Several patches of its lightly-shaded body reveal a fibrous interior, wound horizontally. Its forehead, neck, arms, and the area from its midriff to the top of its feet bear small, evenly spaced studs/bumps.
Composed of string, when unraveled its texture is like silk, apparently smelling of soap.
Stone Free is a unique close-range Stand that can not only be summoned to fight, but also provides Jolyne with integrated abilities. Like her father Jotaro's Star Platinum, Jolyne's Stone Free is both powerful and fast, making it great for fighting physically, although Jolyne often fights herself. Moreover, its string power gives it great versatility that allows Jolyne a wide array of actions in combat.
When Stone Free's string is completely wound or compacted, it is very strong; the destructive force of its punch roughly equivalent to that exerted by a small, extremely fast meteor. It is also fast enough to deflect several bullets aimed at it.
The string is invisible to non Stand Users but it is portrayed inconsistently. It is also sharp as it can slice through flesh when pulled violently enough. On the other hand, the string is not particularly strong and may snap if strained too much, although Jolyne can create a stronger rope out of several strings. Jolyne can freely control what the string does, with enough precision to pickpocket small objects that way. The string can contract and expand like muscles, allowing Jolyne to control the grip a string has. They are also noted to feel like silk.
If Jolyne gathers the string and clumps it, she can concentrate her power and form Stone Free, who may fight in her stead, but Stone Free's range is shortened to around 2 meters. Stone Free, composed of strings, can naturally be unraveled too.
Jolyne may unravel around 70% of her body harmlessly, as well as quickly rewind. It notably allows her to be supernaturally flexible and be able to hide in cramped spaces like someone's mouth. At harm to herself, Jolyne may also cut her string for a further variety of applications. Stone Free's maximum range, unraveled to 70%, is about 24 meters, as long as the string's length.
The controllable string makes Jolyne exceptionally versatile in battle. With the string, Jolyne is able to:
- eavesdrop on distant conversations in the form of sound vibrations through her string by the same principles behind the tin can telephone but also converse through them.
- slice people with the sharpness of the strings.
- choke people.
- pickpocket small objects.;
- weave a tight net instantly strong enough to stop bullets to protect herself.
- create a large net to capture enemies.
- tie people up for various uses, mainly pulling them in range.
- stitch her wounds.
- deploy a "string barrier" to detect movements over a large area.
- create complex patterns to the point Jolyne can make a portrait.
- swing from place to place.
- Counteracting C-Moon's ability to turn things inside-out, Jolyne uses Stone Free to change affected areas of her body into Möbius strips.