①. Features: TTC Yellow Core Encoder Decoder, 2 pieces included. ②. Customized for a relatively long lifespan of 48 million cycles. ③. Relatively high precision, with a slightly stronger scale feel. ④. The encoder can be used if the height of your mouse's existing encoder (distance from the board surface to the center hole) matches this one. ⑤. Compatible models: Mamba Tournament Edition, Mamba HyperFlux, Mamba Elite, Viper Wired, Mamba Wireless, Basilisk V2, Basilisk Ultimate, ROG Gladius III. ⑥. Specifications: Core - Yellow; Lifespan - 48 million cycles; Quantity - 2 pieces. ⑦. Package Includes: 2 x TTC Mouse Encoder. ⑧. Note: Manual measurement may result in a size error of 0 to 2 cm, which is normal. Additionally, due to monitor differences, the picture may not fully reflect the actual color of the item. Thank you!