The KREMLIN REXSON Part # 102 201 907 Ruarc Ring N*4 is a paint sprayer and striping machine accessory designed for industrial use. Made in France by the brand KREMLIN, this product includes 8 washers and a silver tool, I would assume helps in installation. With a specific model number of 102 201 907, this non-modified item is ideal for businesses and industrial settings requiring precision and efficiency in paint application.