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: Outline, belonging to category: Bathtub

### Response:
The special feature of the rectangular bathtub of the Outline series, which is also available in a free-standing version, is the patented Hydroline whirlpool system: this means the classical massage nozzles are replaced by small slots which are almost invisible. These slots are also backlit, which allows an innovative play of light with Chromoexperience (colour therapy) in eight different colours.
### End