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: BRP Sea-Doo GTX Limited 300 Watercraft Platforms, belonging to category: Jetboats

### Response:
Above all, the outstanding feature of the 300 Watercraft Platforms, apart from their novel braking system, is their innovative “Ergolock System”. This consists of a completely adjustable handlebar, a particular seat shape and additional footrests, allowing the rider to blend in with the machine. The special seat has “knee pockets” which lock the knees in, allowing power to come from the legs, relieving stress on the arms and shoulders.
### End