# The Challenge
A typical experience with chastity is what the community calls "turtling": your body naturally relaxes and retracts over the course of
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the day, leading to going down there to "re-seat" yourself quite often, especially after sleep or exercise.
The problem can never truly be eliminated, except by resorting to piercings, but this design gets awfully close! The "inner" base ring sits around the base of the phallus, and then the outer shell traps the head. The space in between is larger and more open than it seems at first- almost a hollow sphere -allowing an erection to fill that space by expanding outward to the sides, instead of pushing the cage away from the body.
The separate head also make it much easier to put on.
## How to Use
You will need two "magic locks" such as https://www.amazon.com/gp/product/B001BAWCEU/
Place the outer (largest) ring around your scrotum AND phallus, making sure it sits comfortably, and no skin is being pinched or stretched.
Place the inner (medium) ring around the phallus, and gently pull the phallus through it until the inner ring sits around the base of the phallus and the lock seats with the outer ring. Lock the inner ring in place.
Take a moment here to make sure everything is comfortable- move around a bit, again make sure nothing is being pinched or stretched.
Place the head of your phallus in the cap. The cap has a lock at the top that connects to the top of the inner ring, and a "tooth" that sits in a small divot at the bottom of the inner ring. Set the point of the tooth in that divot, then seat the lock, and as long as everything feels comfortable, lock the cap in place.
> Side note: If you buy cheap "magic locks", they will most likely all be keyed exactly the same, which can be a convenient benefit, but these locks are also lower quality and wear down more quickly. Expensive "furniture locks" are going to be keyed uniquely, and generally will be of higher quality.
## Is this escape-proof?
No.
If you really wanted to -- this is a problem with ALL cages; don't believe any marketing hype that says they have an escape-proof cage -- you can pull the phallus out by itself. Penises are soft, squishy, and stretchy, and can be pulled through very small gaps.
# ⚠ Use Body Safe Materials and Printing Techniques ⚠
- 100% infill
- Body-safe material such as ABS or nylon
- Non-porous surface — this doesn't just mean removing layer lines, this means removing all microscopic surface details where bacteria can live. You want a glassy surface, such as acetone-smoothed ABS.
