Kraft Blade Silhouette for Cameo 4 SILH-BLADE-KRAFT-2

Which blade should i purchase if i am using it to cut on vinyl sticker paper? i have a cameo 4

Is this cameo 4 or cameo 3 blade, your first picture shown is cameo 3 kraft blade, which would i receive?

Will this work with Portrait 3?

buenas noches! te pregunto es compatible con la portrait 3?