Very good.

1. The second-generation Shenghe Water Drop Wheel Sirius has improved its materials and is 10 times lighter than the first-generation product, thereby alleviating hand fatigue during use.

2. The second generation of Shenghe water droplet Sirius uses imported bearings, which are more lubricated and durable than the first generation, and its service life is extended by 20%. So to sum up, Sirius II is very good.