FlexiSpike Chastity Cage Size 4 CELLMATE

CELLMATE FlexiSpike Size 4 – extreme length, uninterrupted control, and absolute discipline

The Size 4 model from the FlexiSpike series is CELLMATE’s most advanced chastity cage — longest, most structured, and utterly uncompromising. Built for users with a noticeably longer flaccid anatomy or those who prefer maximum control in both length and depth. This isn’t for beginners. It’s for those who understand that real chastity begins where compromise ends. Its length, firmness, and adaptability make it ideal for daily wear and long-term submission.

Size 4 – a cage that leaves no space and no illusion of escape

FlexiSpike Size 4 offers an imposing 105 mm in length, with a consistent 39 mm inner diameter. It’s designed to fully enclose the entire penis — even in users with an elongated flaccid profile. But this isn’t about fitting more — it’s about locking down everything. Down to the last millimeter. The body cannot move without being reminded that it is no longer its own. In this model, there is no room for negotiation — not physically, not psychologically.

Rigid resin – a build for everyday denial

The cage body is made from synthetic resin that withstands sweat, water, temperature changes, and mechanical pressure. It’s completely metal-free and non-reactive to body heat, ensuring its form never distorts — no matter how long it’s worn. It’s safe during showers, sleep, physical activity, and even airport security checks.

A finish that offers no reason to stop the scene

Every FlexiSpike Size 4 is hand-sanded to eliminate sharp edges and rough spots. No pinching, no irritation — even during extended wear. But comfort doesn’t soften the device’s purpose. On the contrary — it becomes a trap. If nothing hurts, there’s no excuse to remove it. You wait — for permission, not relief.

Locking ring system – ergonomic barrier that doesn’t budge

The set includes four anatomical base rings — 43 mm, 46 mm, 49 mm, and 55 mm — to allow precise adaptation to the user’s body. The right fit is critical. Too tight and it becomes painful. Too loose and it risks escape. When fitted properly, the ring prevents any shifting or removal — total confinement with no workaround.

Physical lock that becomes psychological

Once the ring is closed and the body secured — the system becomes whole. There’s no reach, no wiggle, no accidental shift. Size 4’s extended shaft reinforces this sensation. The body is not just enclosed — it’s transformed. And the structure doesn’t forgive.

Silicone spikes – an interior with intent

Four sets of silicone spikes — two pink, two black — are included. Made from flexible silicone, they aren’t sharp but can absolutely enforce behavior. Place them strategically to control posture, prevent shifts, or maintain pressure during every move. The wearer doesn’t decide when or where — that authority belongs solely to the keyholder.

An invisible stimulus that cannot be ignored

Spikes turn the interior from passive to active. Sometimes, one is enough to remind who’s in control. Other times, it’s constant pressure. With no need to remove the cage, you can program sensations that linger — always there, even when unseen.

Dual locking options – determined by one person only

FlexiSpike Size 4 can be secured in two ways. A classic brass lock with two keys — heavy, physical, unmistakable. Or the ABS adapter for disposable Stealth Locks — lighter, discreet, tamper-evident. Both are secure, both are final. The choice depends on your dynamic. The outcome remains the same: no release.

Stealth Lock – discretion without sacrificing control

Five plastic Stealth Locks with unique ID codes are included. Once applied, they can only be removed by cutting — and only with the keyholder’s permission. Ideal for remote play, discreet wear, or travel scenarios. Subtle on the outside — unbreakable in practice.

Size 4 – for the experienced, the aware, the obedient

This isn’t a compromise device. Its 105 mm length doesn’t just trap the body — it eliminates its usability. The penis becomes unreachable. Unstimulated. Immobile. Isolation is no longer metaphorical — it’s physical. Every urge meets a wall. Every desire ends in silence.

All-day presence, no matter the context

Despite its length, the cage remains discreet under clothing. Its ergonomic design allows for wear at work, during travel, or while exercising. No metal means no alerts at security. A properly fitted ring allows movement — the cage doesn’t hinder, but it never disappears. It’s always there. And it always reminds.

Technical specifications – CELLMATE FlexiSpike Size 4

• Inner cage length: 105 mm
• Inner diameter: 39 mm
• Material: rigid synthetic resin (metal-free)
• Finish: hand-sanded, hypoallergenic
• Base rings: 43 mm, 46 mm, 49 mm, 55 mm
• Silicone spikes: 4 sets (2 pink, 2 black)
• Traditional lock: brass with 2 keys
• Stealth Lock adapter: included
• Stealth Locks: 5 plastic locks with unique ID
• Security gate compatibility: yes

Available sizes in the FlexiSpike series

• 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

No escape hatch – CELLMATE Size 4

CELLMATE FlexiSpike Size 4 is the end of the road — there’s nothing longer, tighter, or more total. It’s built for those who want to control — or be controlled — without gaps, loopholes, or excuses. Its size, structure, spikes, locking options, and stealth-ready design make it the ultimate tool for serious scenes, demanding relationships, and conscious submission. Size 4 doesn’t invite questions. It only demands obedience.