Custom size Chastity Cage -  Stainless Steel - ExoSpine

SIZE CALCULATOR

This chastity cage is fully custom, bespoke device that is 3D printed in solid surgical-grade stainless steel.

Each piece receives extensive hand finishing and mirror polishing after coming out of the printer — a meticulous, labor-intensive process that transforms raw metal into a seamless, wearable sculpture. The result is a one-of-a-kind creation, built precisely to your anatomy and comfort.

The ExoSpine takes its name from its striking, ribbed exoskeletal design — inspired by the fusion of organic form and engineered precision. Every curve follows the natural lines of the body, locking you securely while allowing airflow, hygiene, and long-term wear.

This isn’t just a cage — it’s a statement of permanence and control.

The precision spine structure distributes pressure evenly, reducing hotspots and creating a uniquely ergonomic fit that moves with you, not against you.

Why You Should Get This Cage

• Built entirely to your measurements for a perfect, personal fit

• Combines 3D-printed innovation with handcrafted finishing

• Surgical-grade stainless steel for durability and hygiene

• Exoskeletal “spine” design balances comfort with total control

• Polished to a mirror shine — built to last a lifetime

• Designed for serious long-term wearers who value craftsmanship and restraint

Material:

Stainless Steel 316 Medical Grade;Non-porous, body-safe, and rust-free.

HOW TO MEASURE YOURSELF

Measuring needs to be done several times during the day and then average out. Measure while you are flaccid.

Total Cage Length: Take a ruler and place it on the underside of your flaccid penis, measuring from tip to base. You should be completely flaccid when taking this measurement. For accurate results, take this measurement several times throughout the day, Remove 1/4 inch or 6mm from this measure.

The shaft inside diameter: Measure with a tapeline around the penis shaft - tighten just a little. Divide by 3.14 to get the diameter and add an extra 0.11 inch or 3mm

Base Ring Size: Take an inextensible cord, and tighten it around your penis and balls, so you can put only one finger beneath it. Take the length of this segment.
Alternatively, you can measure with a dressmaker's tape. Divide by 3.14 and get the diameter.

You are the sole responsible for your measurements. We do not accept returns or claims if a device does not fit.
We will make the device with a possibledeviation from 1 to 5 mm depending on device.

Every Guardian custom chastity cage is designed and made to order. Please allow 2-6 weeks for this process to happen.