Micro Chastity Cage Sizing Guide
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Micro sizing is a measurement task, not a preference for the smallest variant. Record the ring opening, relaxed body length, and internal width as three separate values. A shorter cage that compresses tissue is not made safer by a larger base ring.
Before choosing a micro profile, compare the smaller Mamba designs and reject any whose actual inside space is unclear or unsuitable.
Step 1: measure the ring position
Use a flexible tape or non-stretch string around the intended base-ring position while relaxed. Record the circumference without pulling the tape tight. Divide by π for an approximate circular diameter, then compare with the selected product's ring inner diameter. the ring measuring guide explains why shape still matters.
Step 2: measure usable body space
Record a relaxed, uncompressed length from the body-side cage start to the tip and the width required inside the cage. Check whether a listing's number is overall cage length or the space inside. The Pink Mamba 4.0 Chastity Cage gives a 40 mm Nub and 55 mm Nano listed cage length, but its listing does not supply every internal dimension. Do not silently treat 40 or 55 mm as usable inside length.

Step 3: compare and trial
Select only a model whose documented dimensions plausibly fit. Ask for missing inside-width or usable-length data. Test assembled ring, gap, and cage together during a short session. Remove immediately if there is pain, numbness, swelling, concerning color change, or difficulty urinating. the Mamba size guide contains the full Mamba comparison table.