These keychains are created with a 3d machine. They are created with an array of filaments from Matte, to silk, metal and wood and more. The filament used is made from biodegradable PLA (polyactic acid) derived from renewable resources like corn starch or sugarcane. It is a plant-based plastic which can break down under specific conditions, such as industrial composting facilities, making it a more sustainable option than traditional plastics.