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Name: Medium Squeal Butt Plug
Brand: Sinnovator

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 Squeal Butt Plug Sinnovator

girth6.7″ usable 12.0″ feelnot published

Medium Squeal Butt Plug Sinnovator

girth8.0″ usable 16.4″ feelnot published

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 Squeal Butt Plug12.0″ usable · widest shaft point 6.7″
Medium Squeal Butt Plug16.4″ usable · widest shaft point 8.0″

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 Squeal Butt Plug	Medium Squeal Butt Plug
Usable length	12.0″	16.4″
Total length	12.8″	17.5″
Widest girth	6.7″	8.0″
Narrowest girth	3.3″	3.5″
Tip girth	3.3″	3.5″
Mid girth	6.7″	8.0″
Firmness options	not published	not published
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 1.3″ of girth: 6.7″ around becomes 8.0″.
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: 12.0″ of usable length becomes 16.4″.
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 Squeal Butt Plug → See the Medium Squeal Butt Plug →

The other sizes of this sculpt

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

Medium vs Large Squeal Butt Plug