Add products by adding codes
FlexiSpike Chastity Cage Size 4 CELLMATE
CELLMATE FlexiSpike Size 4 – maximum length, total lock, and no compromise
Size 4 in the FlexiSpike series is CELLMATE’s longest chastity cage to date. Engineered for those who demand absolute control — with no compromises, no slack, and no room for negotiation. It’s made for men with a longer flaccid anatomy or those who seek to extend denial on every possible level: physical, emotional, and ritualistic. With a precision-molded body, adjustable ring system, optional silicone spikes, and dual locking mechanisms, this is not a cage — it’s a fully dominant device.
105 mm in length – full enclosure, full disconnection
FlexiSpike Size 4 provides a length of 105 mm with a standard 39 mm inner diameter. Designed for users who simply don’t fit into shorter models or want a deeper, more intense experience of separation from their own body. The extended shaft surrounds the penis entirely — leaving no space for tension, erection, or repositioning. Every impulse becomes irrelevant. Every attempt at motion ends in solid resistance.
Synthetic resin – safe, solid, and daily-wear resistant
CELLMATE uses high-grade synthetic resin — completely metal-free and skin-neutral. It doesn’t react to body heat, doesn’t soften, and won’t deform. It can be worn during sleep, showers, physical activity, and even air travel — it won’t trigger security systems. It doesn’t absorb moisture or odor, making it a hygienic long-term option.
Hand-finished surface – high-function tech that disappears on the skin
Each Size 4 cage is hand-sanded and polished. This isn’t just about looks — it’s about safety and endurance. No sharp edges, no pressure points, and perfect joining of components. The result? A cage that doesn’t chafe, doesn’t cut, doesn’t force interruption. This is how true all-day chastity becomes possible — without breaks or excuses.
Locking ring system – four points of tailored control
Included are four ergonomically shaped rings in diameters: 43 mm, 46 mm, 49 mm, and 55 mm. Their form ensures a perfect fit around the base of the penis and scrotum, eliminating slippage and manipulation. The right ring seals the structure — no space, no access, no escape.
A connection that stays sealed
When ring and cage form one rigid unit, the structure retains its locking function regardless of body position, activity, or time. The system offers no gaps, no shifting, no bypass. Once Size 4 is secured, access is no longer the wearer’s decision.
Silicone spikes – pressure tools with programmable presence
Included are four sets of silicone spikes: two black and two pink. Their use is optional, but decisive. Whether installed fully, partially, or individually — they offer anything from a subtle reminder to assertive interior discipline. The user doesn’t get to choose — that power belongs to the keyholder.
Modular discipline – pressure that never fades
Made of durable, flexible medical-grade silicone, the spikes don’t harm — but they are always felt. They respond to every movement. The wearer can’t remove them, can’t shift them, and can’t truly get used to them. Their power lies in unpredictability. They don’t have to be aggressive to be effective.
Dual locking system – a tool of power, both symbolic and functional
CELLMATE equips FlexiSpike Size 4 with two independent locking mechanisms. The first is a classic brass padlock — heavy, physical, and symbolic, with two keys. The second is a modern ABS adapter for single-use Stealth Locks with unique ID numbers. Both systems are equally secure — they differ only in how control is applied. In either case, the decision to unlock lies with the one in charge.
Stealth Mode – discreet lock, undeniable effect
The set includes five plastic Stealth Locks — each with a unique identification code. Once applied, they cannot be removed without cutting. Ideal for long-distance dynamics, travel, or day-to-day control. A single photo or video confirms whether the cage is still locked. It’s a perfect tool for remote domination — with no loopholes.
Extended length, complete immobilization – Size 4 as the final measure
With a full 105 mm of length, FlexiSpike Size 4 is built for prolonged, inescapable denial. For many, it’s the only model that allows full anatomical fit. For others, it’s a tool of physical discipline that doesn’t end with the lock. A longer body means longer time in chastity. This is a decision to deepen control — both literally and symbolically.
For the wearer: constant presence. For the keyholder: total confidence
It remains invisible under clothing, doesn’t restrict everyday movement, and won’t interfere with travel or work. But it never stops working. The user is always aware of it — its weight, its intent, its function. This isn’t a pretty accessory — this is a body sealed in a structure that doesn’t allow exit without explicit permission.
Technical specifications – CELLMATE FlexiSpike Size 4
- Inner cage diameter: 39 mm
- Inner cage length: 105 mm
- Material: water-resistant synthetic resin
- Finish: hand-polished, hypoallergenic
- Locking rings: 43 mm, 46 mm, 49 mm, 55 mm
- Silicone spikes: 4 sets (2 black, 2 pink)
- Traditional lock: brass padlock with 2 keys
- Stealth Lock system: ABS adapter + 5 disposable coded locks
- Security screening compatibility: 100% metal-free
Available FlexiSpike sizes
- Size 0 – 34 mm / 45 mm
- Size 1 – 39 mm / 65 mm
- Size 2 – 39 mm / 85 mm
- Size 3 – 39 mm / 95 mm
- Size 4 – 39 mm / 105 mm
The final word in chastity – for those who accept no leniency
CELLMATE FlexiSpike Size 4 is designed for real, long-term dominance. Its length, materials, locking options and ability to personalize pressure make it not just effective, but intentional. This is for those who understand that power lies not in aesthetics — but in consistency. Size 4 doesn’t give second chances. Once locked — it becomes the new order.


























