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: TENGA FLEX, belonging to category: Masturbator

### Response:
The Tenga Flex is a male pleasure item which incorporates grooves and spirals into the function and the design. The solid yet flexible housing is characterised by dynamically running spiral ribs and works with air pressure. When the hole at the end of the housing is covered after insertion, an internal vacuum is created, which automatically leads to a rotary movement. For cleaning, the sleeve can be easily removed. Once the cap is put on for storage, the edges integrate seamlessly into the case, creating an elegant, sculptural shape.
### End