Sissy Chastity Cage | F291

The F291 is made for sissies who crave that constant, irreplaceable sense of pressure and control, but still need something they can live in. It’s discreet enough for daily wear, confident enough for going out, and flexible enough to grow with your journey.

At its core, this cage starts as a pot-lid style design that gently cups the glans, holding everything in place instead of pressing it flat. It feels contained, calm, and discreet—easy to wear under clothes and safe enough to step outside without fear.

But when you’re ready to go further, it transforms. A detachable inverted cylinder unit allows the cage to convert into an inverted setup, guiding your body into deeper submission and feminized restraint.

The inverted cylinder uses a modular system. You can add or remove sections to adjust the inversion depth to match your comfort level—or your ambition. If you desire even deeper inversion, additional cylinder modules can be purchased separately, allowing unlimited progression without artificial limits. This makes F291 a cage you won’t outgrow.

For comfort during long wear, a dedicated urine tray can be installed at the glans contact area. It helps reduce pressure, improves hygiene, and makes inversion feel more natural and manageable—especially for extended lockups.

Every detail is carefully finished. Smooth, rounded edges protect sensitive skin, while the layered, biomimetic surface texture is inspired by real female anatomy. The visual result is soft, intimate, and affirming—designed to help you see yourself the way you want to be seen.

Each set includes four base rings, giving you flexibility to find the perfect fit, plus five One-Time Plastic Lock locks as a bonus—ideal for training, self-control, or symbolic surrender.

• Model: F291
• Material: ABS Resin
• Weight: 93g
• Color: Black, Pink
• Cage inner width: 1.92 inch / 49 mm
• Cage diameter: 1.65 inch / 42 mm
• Cage holes: 0.27 inch/ 7mm

INVERTED CYLINDER UNIT SIZE

• width: 0.94 inch/ 24mm
• Length: 0.78 inch/ 20mm

URINE TRAY BASE

• width: 1.41 inch/ 36mm
• Length: 0.82 inch/ 21mm
  

BASE RING DIAMETER ：

• 1.65 inch / 42 mm
• 1.77 inch / 45 mm
• 1.89 inch / 48 mm
• 2.05 inch / 52 mm
  

• ACCESSORIES - [OPTIONS ]

We offer an optional elastic belt accessory for this item, if you are interested in it you can use it with this item, the elastic belt is also compatible with all chastity cages in our store, if you are not interested in it please select “none”

• Name: Three-Way Support Belt
• Model: PU5
• Material: ABS Resin
• Color: Black, Pink
• width: 0.94 inch/ 24mm
• Length: 0.78 inch/ 20mm
  

• Name: Inverted Cylinder Unit
• Material: ABS Resin
• Material: Nylon fiber + rubber + latex
• Color: Pink, Black
• Intro: Applicable waist 33.50 inch - 51.20 inch (85 cm - 130 cm).
• Compatible with all FRRK Chastity Cages

SELECT CAGE VALID | OPTIONS 

• 4 Rings
• 2 Screws
• 1 Wrench
• 1 Connection
• 1  Pot Lid Cage
• 1 Urine Tray Base
• 5 One-Time Plastic Lock
• 1 Inverted Cylinder Unit
• 1 Metal Padlock with 2 Keys

Belt Color | OPTIONS 

• 4 Rings
• 2 Screws
• 1 Wrench
• 1 Connection
• 1  Pot Lid Cage 
• 1 Urine Tray Base
• 5 One-Time Plastic Lock
• 1 Inverted Cylinder Unit
• 1 Three-Way Support Belt
• 1 Metal Padlock with 2 Keys
  

Extra Inverted Cylinder Unit | OPTIONS 

• 1 Inverted Cylinder Unit

Extra Inverted Cylinder Unit & Belt Color  | OPTIONS 

• 1 Inverted Cylinder Unit
• 1 Three-Way Support Belt

*Your privacy is of our utmost importance. All of our items get shipped out VERY DISCREET. With no weird markings on the packaging of any kind. It will be your little naughty secret and no one will ever know what's inside.