BON4Mplus contains a small and a large chastity cageBON4Mplus solid chastity package in stainless steelBON4Mplus Hinged optimal male chastity package with 7 ringsBON4Mplus cage sizes to stay devoted to your keyholderBON4Mplus solid male chastity package has 4 closed rings

BON4Mplus optimal male chastity package in stainless steel

A practical and exciting combination of well designed rings and cages.
No more worries about sizing or measuring.
The variety of ring sizes enables you to create the right fit. Which is very important, as it is the (C&B) ring that basically holds the device. Secure the ring that fits you best to one of the cock cages.
The look and the feeling of this cold steel tight around your scrotum is amazing. Once locked you'll stay days, weeks, or maybe even months, fully submissive and devoted to your kh.
Life's so much more exciting having your orgasm and cock controlled by a teasing and demanding keyholder.
The BON4M Series is a highly secure device for those who are seriously interested in the world of male chastity.
Opt for solid (closed) rings for less pinching and opt for hinged (can be opened) rings for a better security & fit.
Choose between the following options
Hinged or Solid
Free BON4plus silicone
$ 289,00 USD
  • 2 different sizes of stainless steel chastity cages
  • Overall Assembled Length: 3.65″  (90 mm) and 4.33″
  • Internal cage length: 2.56″ (65 mm) and 3.35″
  • Choose between Hinged or Solid Stainless Steel back-rings:
    - Solid: 4 Different sizes of Stainless Steel back rings: 1.57″ 1.73″, 1.89″ and 2.05″
    - Hinged: 7 Different sizes of Stainless Steel back rings: 1.57″, 1.65″, 1.73″, 1.81″, 1.89″, 1.97″ and 2.05″
  • 2 Stainless Steel Locking Pins
  • 2 brass quality padlocks
  • 4 First grade silicone covers (to prevent possible pinching)
  • 5 unique numbers laser-engraved on each Cage. These numbers are kept in our database and guarantee our customers an original BON4
BON4 Tag
All the BON4 products come with an attached tag.

Scan the QR code with a smartphone to view the instruction movie and fill in the unique code to claim 1 year full warranty!
Use your smartphone to scan the QR-code, go ahead and try:

BON4 key safe -
$ 39,00
We offer you:
  • Free global (FedEx) shipping
    (on all orders > $79 USD)
  • One year full warranty
  • Discreet packaging
  • Delivery to any PO box
  • Secure payment with

BON4M Instruction movie
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We are the sole manufacturer
of the BON4 range of products and we're proud to have done so since 2009. All products on this website are original and of the very best quality. Our brand BON4 is trademarked in Europe, Asia and the USA
The opinions and feedback from our customers are really important to us so If you have a comment, query or opinion you would like to share with us just go to our Contact Page and send it to us. We will always be pleased to hear from you.