All Spaceman USA machines utilize Scraper Blades to produce soft-serve or frozen beverage product. These scraper blades attach to the beater / auger inside the freezing cylinder. Prior to 2020, Spaceman USA scraper blades came as 2-pieces: the wearable plastic blade and a metal clip that strengthened the blade for operation. We refer to these blades as Version 1 (V1). V1 blades can be replaced with V2 blade and no Scraper Blade Clip Required. See part number 3.4.02.01.005.P6 for V2 replacement. If ordering V1 blades, Scraper Blade Clip: 2.3.4.04.001 is also required.