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Name: Medium Jacobi
Brand: Fantasy Grove
Price: 75.00 USD
Availability: InStock

Goldilocks measures and compares adult toys. Everything here is written in plain words, and none of it is for under-18s.

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Small Jacobi Fantasy Grove

girth5.0″ usable 4.8″ feelultra-soft–medium

$60

Medium Jacobi Fantasy Grove

girth7.0″ usable 6.0″ feelultra-soft–medium

$75

One on top of the other

Both outlines on one axis, at the same scale. Sizes come from the makers’ published girths; where a usable cut-out exists, the profile itself is traced from it. Where they overlap they’re the same; the gap is the difference.

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Small Jacobi4.8″ usable · widest shaft point 5.0″ · base flare 8.5″
Medium Jacobi6.0″ usable · widest shaft point 7.0″ · base flare 12.0″

Side by side at the same scale

Drawn to scale: sizes from published girths, and the profile traced from the cut-out where we have one. Point positions along the shaft are approximate.

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How the numbers compare

Differences of about ¼ inch or more are highlighted. Blanks mean the maker doesn’t publish that point.

	Small Jacobi	Medium Jacobi
Usable length	4.8″	6.0″
Total length	6.5″	8.0″
Widest girth	5.0″	7.0″
Narrowest girth	3.0″	4.0″
Base girth	8.5″	12.0″
Firmness options	ultra-soft–medium	ultra-soft–medium
Knot	no	no

Which one should you get?

Every line generated from the spec deltas above.

Stepping up from the Small to the Medium adds 2.0″ of girth: 5.0″ around becomes 7.0″.
That’s over an inch in one step. Owners who’ve worked up sizes generally suggest half an inch to an inch of girth at a time, so this is a jump rather than a nudge — the one to be careful with if the Small already sits near your limit.
The Medium is the longer of the two: 4.8″ of usable length becomes 6.0″.
Both sizes come in the same firmness options (ultra-soft–medium), so feel isn’t a variable here — only size is.
Between the two? There’s no rung between them in the sizes we track for this sculpt — so it’s the Small, or a different sculpt that lands in the gap.

See the Small Jacobi → See the Medium Jacobi →

The other sizes of this sculpt

Same sculpt, the other steps in its size ladder — each one measured the same way.