Malossi brand variator for the Vespa ET4. From the Malossi website:
Multivar is very easy to fit and to modify.
It is developed in detail and for specific applications.
With a variator that features such sophistication, your scooter has that extra sprint, a consistency in shifting, a greater mechanical ease at high speeds and a constancy in performance you've never experienced before with the original variator.
Contains 14g rollers.