Selective Laser Sintering (SLS) is a professional additive manufacturing process that creates durable, end-use parts by sintering powdered thermoplastics layer by layer with a laser. Unlike FDM, SLS requires no support structures, enabling complex geometries, interlocking features, and lightweight designs to be produced directly from digital models. Using engineering-grade nylon (PA12) in black or white, SLS delivers isotropic strength, fine detail resolution, and robust mechanical properties, making it well-suited for functional prototypes, low-to-mid volume production, and industrial applications across automotive, aerospace, medical, and consumer products.