1PC TTC 13mm Mouse Encoder Mouse Yellow Core 2 Million Long
The encoder can be commonly used as long as the encoder of your mouse have the same height with it
(Distance from board to center hole)

Specifications:
for: for mouse
Height dimension: 13mm
Customized life 2 million times
Relatively precision, slightly for scale

Package includes: (Without retail package)
1x TTC 13mm Mouse Encoders