You can find all the spare parts you need at Escapa.
Miche Light Primato Cassette compatible with Campagnolo 11-speed.
Compatible with Campagnolo.
Weight reduction: 8–12%.
Manufacturer's weight: 249 g (11/25)
Primer and second sprockets made of matte chrome-plated steel.
Last sprocket and lockring made of hard-anodized 7075-T6 aluminum.