These are Gateron's new China Joy (CJ) switches. These feature a POM bottom housing, translucent top housing made of their INK switch material, POM stem and 60g linear spring.

Gateron CJ Switches

These unique gateron switches offer an ink top housing, and opaque POM bottom housing. The housing is paired with a POM stem and 60g spring to bring you an extremely smooth stock switch, that takes well to modding if needed.

Gateron CJ Linear Switch

The Gateron CJ (China Joy) POM Linears offer the infamous INK top housing with POM bottom housing. Plus a POM stem. SHEEESH, talk about the next Clack King, right here! 
"These are definitely one of the most smoothest STOCK switch, I have EVER used. It's just so well produced, and definitely lives up to the CLACK kingdom. I, personally, do not recommend lubing these switches, as they sound JUST SO GOOD as stock. But hey, if you're just addicted to lubing all your switches, nobody's stopping you!"
- Konata
Oh, and yes, their housing is pretty tight, so films most likely will not fit. (lol)
Switch Specs:

Ink Top Housing
POM Bottom Housing
POM Stem
4mm Distance Travel
50g Actuation
5-pins
Stock
Linear

Switch Review & Sound Test by KeyBored

 

Here is a guide on how many switches you'll need for different keyboard sizes (The guide is a reference, but some keyboards market a certain layout even though they require a few more or fewer switches. Always order a few more if you're unsure):

120 - full size
92 - TKL
80 - 75%
70 - 65%
65 - 60%
45 - 40%

 
Selling in quantity of 1

- Gateron CJ POM Linears have INK top housing with POM bottom housing and POM stem
- One of the smoothest stock switches available
- Not recommended to lube the switches
- Housing is tight, so films may not fit
- Linear switch with 4mm distance travel and 50g actuation
- 5-pins
- Guide provided for number of switches needed for different keyboard sizes

Gateron CJ POM Linear Switches

Choose from a wide selection of Gateron KS-9 switches!
specifications Gateron Black Switch – Linear:60g Activation force | 2mm Pretravel | 4mm total travel Gateron Red Switch – Linear:45g Activation force | 2mm Pretravel | 4mm total travel Gateron Blue Switch – Clicky:55g Activation force | 2mm Pretravel | 4mm total travel Gateron Brown Switch – Tactile:45g Activation force | 2mm Pretravel | 4mm total travel Gateron White (Clear) Switch – Linear:35g Activation force | 2mm Pretravel | 4mm total travel Gateron Yellow Switch – Linear:50g Activation force | 2mm Pretravel | 4mm total travel Gateron Green Switch – Clicky:80g Activation force | 2mm Pretravel | 4mm total travel details 10 switches per pack
3-pin / Plate mount
Switch model: Gateron KS-9
Hot-swap compatible (plate mount)
Compatible with Cherry MX-mount keycap sets
Optimised for use with SMD LEDs

- Gateron KS-9 switches available in Black, Red, Blue, Brown, White, Yellow, and Green
- Linear, Clicky, and Tactile options available
- 60g, 45g, 55g, 35g, 50g, and 80g activation force options available
- 2mm pretravel and 4mm total travel for all switches
- 10 switches per pack
- 3-pin / Plate mount
- Hot-swap compatible (plate mount)
- Compatible with Cherry MX-mount keycap sets
- Optimized for use with SMD LEDs

Gateron Switches

Type Linear Travel Distance 2mm Actuation 4mm Bottom Force 35g Operating 40g Bottom Mount PCB Spec SheetType Linear Travel Distance 2mm Actuation 4mm Bottom Force 45g Operating 55g Bottom Mount PCB Spec SheetType Linear Travel Distance 2mm Actuation 4mm Bottom Force 50g Operating 60g Bottom Mount PCB Spec SheetType Linear Travel Distance 2mm Actuation 4mm Bottom Force 60g Operating 75g Bottom Mount PCB Spec SheetType Tactile Travel Distance 2mm Actuation 4mm Bottom Force 55g Peak 55g Operating 65g Bottom Mount PCB Spec SheetType Clicky Travel Distance 2.3mm Actuation 4mm Bottom Force 60g Peak 60g Operating 60g Bottom Mount PCB Spec SheetType Clicky Travel Distance 2mm Actuation 4mm Bottom Force g Peak 65g Operating 75g Bottom Mount PCB