Guides

Chastity cage types: materials, shapes, locks and flat chastity

Chastity cages come in far more types than first-time buyers expect. Wikipedia notes they're commonly called chastity cages, penis cages or chastity tubes, and the main differences come down to four things: what they're made of, what shape they are, how they're anchored and how they lock. This page sorts through the types, from rigid plastic to titanium, from standard tubes to flat and inverted cages, explains the rings and locks, and covers the sizing rules that matter most. Our guides to male chastity and cage safety cover the basics and the health side.

Cage or belt?

The first split is between cages and belts. A standard cage, as one 2023 US patent describes it, is a ring seated around the base of the penis behind the scrotum, joined to a capped tube, which is perforated to allow fluid to drain. A chastity belt for men, by contrast, has a band around the waist or hips and a shield that runs between the legs. Wikipedia notes most modern belt designs descend from Hal Higginbottom's designs of 1956, and that long-term steel belts are usually bespoke, custom-made pieces. Cages are smaller, cheaper and far more common; belts suit very long-term wear for people prepared to invest in a fitted piece.

Materials

• Rigid plastic. The classic CB-style cages, patented in 2009, used a housing of polycarbonate or similar rigid plastic. Light and affordable; Slate summed up the market in 2024 as cheap, uncomfortable plastic models on one side and expensive, heavy custom metal on the other.
• Resin and 3D-printed nylon. Printed cages can be made in many sizes and shapes. Nylon is naturally porous, though one maker says vapour sealing reduces this, so cleaning matters.
• Silicone. Soft and comfortable, and around since at least 2011, when a patent named silicone devices on the market. The same patent noted wearers reported skin rubbing from seams and how easily the wearer could slip out.
• Stainless steel. Durable, easy to clean and noticeably heavy.
• Titanium. The premium option, at around 60% of the weight of stainless steel.

One caution applies to all of them: in the US, sex toys are classed as novelties, so claims about materials are the makers' own rather than certified.

Shapes, including flat chastity

Most cages are a straight or gently curved tube. Some curve or angle the tube deliberately; the 2023 patent describes a curved or angled tube designed to make erections uncomfortable. Short nub and micro cages are popular with people who want a compact, discreet fit. Flat cages are shaped with a flat front that holds everything close to the body, and inverted cages curve inwards; both terms come from shops rather than medical or encyclopedic sources, and there's no evidence that either is safer than a standard cage. A small number of designs attach to a genital piercing instead of using a ring, which needs a fully healed piercing and specialist advice.

Rings and anchors

The ring does most of the work and causes most of the problems. Options include full rings, partial rings with a bridge across the gap, and the ball-trap style that some makers use, plus curved rings that some makers say reduce pressure. The 2023 patent puts it plainly: ring size and spacing are the two most important adjustments, and a ring that's too tight will cut off blood flow. Many cages come with spacers of different lengths to set the gap between ring and tube, and makers generally suggest a tube shorter than the wearer's flaccid length so the cage sits snugly without pulling. Our safety guide lists the warning signs of a bad fit.

Locks and seals

• Padlocks. The traditional choice: a small lock whose key is held by a partner. Slate's 2024 piece described a tiny brass lock.
• Integrated locks. Built into the cage body, neater and less likely to snag.
• Numbered plastic seals. Disposable locks that must be cut off. They're useful for emergencies, because anyone can cut one, and for honesty, because each seal's number shows whether it was replaced. A seal only shows whether it was broken, though, not that the cage was worn continuously.
• Screw-style and metal-free locks. Less common alternatives, chosen for comfort or travel.
• Timed and app-controlled lockboxes. The key goes in a box and a keyholder or app decides when it opens; see our keyholder guide.

Travel and scanners

Airport security is a common worry. One maker says small brass locks are unlikely to set off metal detectors but that its printed cages generally do show up on the millimetre-wave body scanners now common at airports, so plastic isn't a guarantee of passing unnoticed. If you travel locked, expect that a scan may show something, and be ready to explain calmly or simply travel unlocked.

Choosing a first cage

For a first cage, comfort and safety beat everything else. Choose a non-porous material that's easy to clean, a design with several ring sizes and spacers, and a lock that can be released fast in an emergency; numbered plastic seals are ideal for this. Read the maker's sizing guide closely, measure twice, and check whether spare rings are sold separately. Avoid buying the smallest or most extreme design first. A cage that's slightly roomy can be swapped later; one that's too tight can do harm. Then build up wear time slowly, as our guide to chastity training explains.

Myths to ignore

• Silicone is just as secure. Wearers reported slipping out of silicone cages easily.
• Plastic always gets through airport scanners. Not the millimetre-wave kind, according to one maker.
• Flat or inverted is safer. There's no evidence either way.
• Chastity belts go back to the Crusades. A popular story that historians treat as a myth, even though one 2023 patent repeats it.

Whatever cage you choose, a keyholder makes it a dynamic rather than a device. The strip at the top of this page shows women live now who list chastity, denial or tease, and our chastity cams page explains how online keyholding works.