I bought them at the time because they are compatible with Roborock s7max ultra. According to the AI query, this model is also compatible with the Saros series. Here is the answer:

⚙️ Comparison with Saros 10R & S7 Max Ultra

Saros 10R: Manufacturer information and compatibility lists, as mentioned earlier, list dust bags that also work with "S7 Max Ultra / S8 / Q-/Saros series" as compatible with Saros models.

S7 Max Ultra: If a bag is compatible with the Auto-Empty-Dock models in this series, the same bag shape and connection type is often used.