Features:

O-ring for keycap is easy to install.
Made of silicone, resistant to cracking and tearing.
Softer O-rings provide softer pad landing for each keystroke, reducing impact on fingers.
Soft for better shock absorption, minimizes finger fatigue.
Suitable for most mechancial keyboard.

Specifications:
Material: Silicone
Color: Black,red,transparent

Package contains: 108pcs O-Rings

Note:
Please allow slight dimension difference due to different manual measurement.
Please note that slight color difference should be acceptable due to the light and screen.