VEVOR Meat Cutter Machine, 550W Meat Slicer, 350 lb/h Commercial Meat Cutting Machine, Stainless Steel, 3.5 mm Thickness, Electric Food Cutting Slicer for Home Kitchen, Restaurant, Supermarket

Hello, I would like to ask two questions about your product: The description says the slice thickness can be selected between 2.5 mm and 10 mm. Is this done via an adjustable mechanism (e.g., a knob or lever), or does it require changing the blade sets for different thicknesses? If blade replacement is required, does the product include a 5 mm blade set, or does it need to be purchased separately? Thank you in advance for your help.

Is this CE marking on the product?