This is the original seat-mechanism that comes with the following models:
Verona V2, Verona Junior, Forte V2, Forte V2 Fabric, Torretta Soft Fabric
This type of mechanism is also compatible with these models:
Enzo, Monza, Milano, Torretta, Torretta XL, Inizio, Inizio PU
Note that this seat-mechanism is only compatible with the products above.