Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: Series 880/881, belonging to category: Institutional Castor Series

### Response:
The modular design of series 880/881 castors allows to supply wheel and brake separately to provide fast and safe assembly of castor to unit. Brake pedal and wheel can be attached tool-free. The castor series feature an interlocking gear brake instead of a conventional friction brake. It is reliable even on dirty or oily floors and protects the tyre. Dents on tyre surface after longer periods of brake actuation are prevented entirely.
### End