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Description
Base Rings for FRRK Chastity Cages F3138 and F3210 Only | K10DESCRIPTION These base rings are only compatible with FRRK chastity cages F3210 and F3138. They will not fit any other models. *Please make sure your chastity cage model is suitable for this base ring before purchasing. SPECIFICATIONS. Color: Silver Model: K10 Material: 304 stainless steel You can choose the size of base ring [Optional] 1. 57 inch 40 mm S 1. 77 inch 45 mm M 1. 97 inch 50 mm L 2. 17 inch 55 mm XL PACKAGE INCLUDES 1 Base Ring K10
• DESCRIPTION
These base rings are only compatible with FRRK chastity cages F3210 and F3138. They will not fit any other models.
*Please make sure your chastity cage model is suitable for this base ring before purchasing.
• SPECIFICATIONS.
- Color: Silver
- Model: K10
- Material: 304 stainless steel
You can choose the size of base ring - [Optional]：
- 1.57 inch /40 mm -S
- 1.77 inch /45 mm -M
- 1.97 inch /50 mm -L
- 2.17 inch /55 mm -XL
PACKAGE INCLUDES
- 1 Base Ring - K10
• QUESTIONS AND ANSWERS
Q: How do I find out the model number of the cage I bought?
- A: In the [SPECIFICATIONS] field of the description, we always include the model number of the chastity cage so you can check it. Or you can also find out the model number of the item at the end of the title.
- For example- Model: F3210
- So, F3210 is the model number of the cage you purchased.
Q: I can't find the model number of the chastity cage in the [SPECIFICATIONS] field in the item description, why?
- A: Please send me a message and I will check it for you.
Q: I can't find the number of the chastity cage I bought in the list. Why?
- A: Sometimes the compatibility list is not updated with new models of chastity cages in a timely manner, so please send me a message and I will help you check.
Q: Are these accessories compatible with chastity cages purchased elsewhere?
- A: NOT. Only fits FRRK chastity cages.
***If you have additional questions about these accessories, please feel free to contact us by sending us a message and we will be happy to answer them.
- Here is the compatibility list. If you are using a PC browser, press CTRL+F and type in the chastity cage number for a quick search.
| Compatible with | ||||
|---|---|---|---|---|
| F3138 | F3210 | |||
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Ergonomic Office Chair
Color: Nori Black (Pu Leather Seat), Color: Nori Black (Pu Leather Seat)
I’ve been using this ergonomic office chair for about a week now and honestly it’s one of the best upgrades I’ve made to my workspace.
The chair was easy to assemble, feels very sturdy, and the mesh back keeps it breathable during long work sessions. The lumbar support is surprisingly comfortable and actually helps with posture, especially if you sit at a desk for hours every day.
The seat cushion has the right balance of firmness and comfort, and I like that the armrests and height are adjustable to fit different setups. The wheels roll smoothly and the chair feels stable even when leaning back.
Pros: ✔️ Comfortable for long hours
✔️ Great lumbar support
✔️ Breathable mesh back
✔️ Smooth rolling wheels
✔️ Modern clean look
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Perfect Office Chair for My Desk Setup!!
Color: Khaki, Color: Khaki
Absolutely love this chair! It was very easy to put together and looks beautiful in my office. The cushion is comfortable, the chair feels sturdy, and it rolls smoothly. I can sit for hours while working without feeling uncomfortable. The color and modern design make my workspace look so much nicer. Great quality for the price and definitely worth it!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Comfortable and Stylish Office Chair
Color: Cream Khaki (Pu Leather Seat), Color: Cream Khaki (Pu Leather Seat)
This office chair is comfortable, supportive, and looks great in my workspace. The adjustable lumbar support helps reduce back strain during long work sessions, and the flip-up armrests are convenient when I need extra space. The combination of PU leather and breathable mesh feels durable and comfortable. Assembly was straightforward, and the khaki color gives it a modern, professional look. Highly recommended for a home office
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Just buy it and you will love it
Color: Khaki
Amazing chair. It looks as expected. Perfect fit for my needs. It has great lumbar support and value of my money. There is no squealing noise and pretty strong and sturdy. I am 5 feet and 8 inches and fits for me. Very easy to setup. I love that they have given extra and back up screwes for every component. Easy setup for one person and very easy setup for two people. I was able to set this up under 20 minutes. Screws and instructions are on the box and inside the seat package. Overall good purchase and happy customer and will update after couple of months.
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Reviewed in the United States on April 20, 2026
★★★★★ 4
A step up, but still room for improvement
Color: Cream Khaki (Pu Leather Seat)
Yikes, the *shilling* on the reviews for this thing! Yes, it's a chair. There are a lot of mesh-backed office chairs for sale here. None of them are likely to change your life.
I can say this chair is a step up in quality from the few others I've purchased online in the past. All hardware below the seat cushion is heavy steel; you won't be breaking this stuff in the near future--and it's a nice change from the almost-entirely-plastic offerings I see elsewhere.
The provided hardware was packaged intelligently: it's all screws (and not too many of them) with various lengths, but they all have the same size hex-head and the package includes a nice matching T-bar to install them; moreover, if you follow the instructions it's basically "use the screws labelled Step 1 now" then "use the screws labelled Step 2 now"--hard to get wrong.
The best part of the chair is the lumbar support. It's why I selected this particular variant, and it was a good choice: it's firm and adjustable and makes a difference. The back is comfortable, and the general motion of the chair (rocking, locking, up/down, swivel, roll) is exactly as you'd expect.
I don't like arms on my chairs: when they're down I rest my elbows there but they're always too high so it bothers my shoulders eventually, and when they're up my elbows bump into them. So I usually remove the arms entirely during assembly--and in this chair that wasn't too hard, but it does leave some slightly unsightly connection points hanging free. That's not a mark against the chair itself--just letting you know; at worst I could point out that this chair's arm movement is maybe a little more limited than usual.
The worst thing about this chair, though, is the cushion. I got the leatherette seat, because it's supposed to be comfortable and easy to clean. In practice it's *not* comfortable at all: it's soft enough, sure, but it's also *very* hot and makes me squirm repeatedly to try to improve my comfort the longer I sit here. I suggest getting the mesh-bottom version, if you're going to get this model.
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Reviewed in the United States on March 30, 2026