Top grade 3D printing filament, manufactured to very tight tolerances. Made from the highest quality materials to ensure consistent feeding & stable prints. Features PLA (Polylactic Acid) filament is a degradable bioplastic derived from plants. Guaranteed not to have heavy metals, phthalates or BPA. All filament is delivered in a vacuum bag, with desiccant, wound onto a spool. Heated build platform not required.