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: Retenser, belonging to category: String Tensioner for Tennis Rackets

### Response:
The Retenser enables tennis players to achieve optimum string tension at any time. Using an innovative technology, it can handle a huge amount of pressure with a refined adjustment mechanism. This makes the string tensioner easy to handle and permits different locking positions. Weighing 5 grams, the Retenser is very lightweight, able to withstand 150 kg of string tension and, thanks to two different base parts, compatible with most rackets.
### End